Add Packages inventory screen and auto-scrap duplicate package pulls

Packages are unique-per-type; duplicate pulls now auto-scrap into Cache
(mirroring the distro dupe->Merges path) instead of a dead-end merges
pool, and the pull reveal shows "-> N cache" for the dupe card. Save
loading collapses any pre-existing duplicate package entries to the
highest-level instance and grants Cache for the extras, logging the
migration.

Also adds a dedicated Packages tab in the Collection screen (master
list with slot filter/sort + affordability hints, detail panel with
upgrade/scrap actions) so the whole inventory can be managed from one
place, sharing state with the existing per-distro Packages sub-tab.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MQmck8EqqWxSq5uVZ4E7yN

Assets/Scripts/Meta/GachaPullContext.cs

@@ -127,6 +127,9 @@ namespace KernelPanic.Meta
         public string DisplayName { get; }
         public GachaRewardType RewardType { get; }
         public PullOutcomeKind OutcomeKind { get; }
+
+        // Holds distro dupe merges, or (when RewardType is Package) the Cache a duplicate package
+        // pull was auto-scrapped for. See StatusText for which unit applies.
         public int MergesAwarded { get; }
         public IReadOnlyList<Language> LanguagesUnlocked { get; }
         public bool Guaranteed { get; }
@@ -139,11 +142,12 @@ namespace KernelPanic.Meta
         {
             get
             {
+                string dupeUnit = RewardType == GachaRewardType.Package ? "cache" : "merges";
                 return OutcomeKind switch
                 {
                     PullOutcomeKind.Granted => "NEW",
-                    PullOutcomeKind.Dupe => $"→ {MergesAwarded} merges",
+                    PullOutcomeKind.Dupe => $"→ {MergesAwarded} {dupeUnit}",
-                    PullOutcomeKind.DupeOverflow => $"→ {MergesAwarded} merges",
+                    PullOutcomeKind.DupeOverflow => $"→ {MergesAwarded} {dupeUnit}",
                     _ => Guaranteed ? "guaranteed" : PityTriggered ? "pity" : string.Empty
                 };
             }

Assets/Scripts/Meta/SaveService.cs

@@ -69,6 +69,7 @@ namespace KernelPanic.Meta
         // Legacy pull-token field kept only so older saves deserialize cleanly.
         public int limitedPullCurrency;
         public int cacheBalance;
+        // Legacy per-pull package-dupe pool. Package dupes now auto-scrap directly to Cache.
         public int packageMerges;
         // Legacy global balance kept only so older saves deserialize cleanly.
         // New duplicate-pull merges live on OwnedUnitSaveEntry.merges.
@@ -84,6 +85,13 @@ namespace KernelPanic.Meta
         public string lastRunDistroId;
         public List<DistroBestWaveSaveEntry> distroBestWaves = new();
 
+        // Populated by NormalizeOwnedPackages when a save contains more than one instance of the
+        // same package id (packages are unique-per-type). Not serialized: the owner (bootstrap code
+        // with access to PackageDatabase) consumes this once per load to grant Cache for the extras,
+        // then clears it. See MainMenuController.LoadMetaState.
+        [NonSerialized]
+        public List<CollapsedPackageDuplicate> collapsedPackageDuplicates = new();
+
         public static SaveData CreateDefault()
         {
             return new SaveData();
@@ -228,17 +236,36 @@ namespace KernelPanic.Meta
 
         private void NormalizeOwnedPackages()
         {
-            HashSet<string> seen = new(StringComparer.OrdinalIgnoreCase);
+            collapsedPackageDuplicates.Clear();
-            for (int i = ownedPackages.Count - 1; i >= 0; i--)
+            Dictionary<string, OwnedPackageSaveEntry> highestById = new(StringComparer.OrdinalIgnoreCase);
+            Dictionary<string, int> extraCountById = new(StringComparer.OrdinalIgnoreCase);
+            for (int i = 0; i < ownedPackages.Count; i++)
             {
                 OwnedPackageSaveEntry entry = ownedPackages[i];
-                if (entry == null || string.IsNullOrWhiteSpace(entry.id) || !seen.Add(entry.id))
+                if (entry == null || string.IsNullOrWhiteSpace(entry.id))
                 {
-                    ownedPackages.RemoveAt(i);
                     continue;
                 }
 
                 entry.upgradeLevel = Math.Max(0, Math.Min(PackageTuning.MaxPackageLevel, entry.upgradeLevel));
+                if (highestById.TryGetValue(entry.id, out OwnedPackageSaveEntry existing))
+                {
+                    extraCountById[entry.id] = extraCountById.TryGetValue(entry.id, out int count) ? count + 1 : 1;
+                    if (entry.upgradeLevel > existing.upgradeLevel)
+                    {
+                        highestById[entry.id] = entry;
+                    }
+                }
+                else
+                {
+                    highestById[entry.id] = entry;
+                }
+            }
+
+            ownedPackages = new List<OwnedPackageSaveEntry>(highestById.Values);
+            foreach (KeyValuePair<string, int> extra in extraCountById)
+            {
+                collapsedPackageDuplicates.Add(new CollapsedPackageDuplicate(extra.Key, extra.Value));
             }
 
             ownedPackageIds.Clear();
@@ -407,6 +434,18 @@ namespace KernelPanic.Meta
         public int upgradeLevel;
     }
 
+    public sealed class CollapsedPackageDuplicate
+    {
+        public CollapsedPackageDuplicate(string id, int extraCount)
+        {
+            Id = id;
+            ExtraCount = extraCount;
+        }
+
+        public string Id { get; }
+        public int ExtraCount { get; }
+    }
+
     [Serializable]
     public sealed class LastRunLoadoutSaveEntry
     {

Assets/Scripts/UI/CollectionScreenController.cs

@@ -45,6 +45,9 @@ namespace KernelPanic.UI
         private int _selectedCardIndex;
         private string _emptyCardMessage = "no cards installed";
         private string _pendingScrapPackageId;
+        private IReadOnlyList<OwnedPackageInstance> _packageInventory = Array.Empty<OwnedPackageInstance>();
+        private int _selectedPackageInventoryIndex;
+        private PackageSlot? _packageInventoryFilter;
 
         public event Action ViewChanged;
 
@@ -98,6 +101,16 @@ namespace KernelPanic.UI
             ViewChanged?.Invoke();
         }
 
+        public void ShowPackages()
+        {
+            _mode = CollectionMode.Packages;
+            _pendingScrapPackageId = null;
+            CurrentTitle = "$ ls ~/packages";
+            CurrentHint = "[esc] back   [left/right] tabs   [tab] tabs   [arrows] navigate   [click] upgrade/scrap";
+            RenderPackages();
+            ViewChanged?.Invoke();
+        }
+
         public bool BackFromSubview()
         {
             if (_mode == CollectionMode.UnitDetail)
@@ -147,6 +160,12 @@ namespace KernelPanic.UI
                 return;
             }
 
+            if (_mode == CollectionMode.Packages)
+            {
+                SelectPackageInventory(_selectedPackageInventoryIndex + delta);
+                return;
+            }
+
             if (_mode == CollectionMode.UnitDetail)
             {
                 return;
@@ -309,6 +328,268 @@ namespace KernelPanic.UI
             SelectLanguage(_selectedLanguageIndex);
         }
 
+        private void RenderPackages()
+        {
+            if (_list == null || _detail == null)
+            {
+                return;
+            }
+
+            _rows.Clear();
+            _list.Clear();
+            _detail.Clear();
+            _list.RemoveFromClassList("hidden");
+            _detailScroll?.RemoveFromClassList("collection-detail-full");
+            if (_detailScroll != null)
+            {
+                _detailScroll.verticalScrollerVisibility = ScrollerVisibility.Auto;
+            }
+
+            SaveData saveData = _getSaveData?.Invoke();
+            int cache = Math.Max(0, saveData?.cacheBalance ?? 0);
+            int bandwidth = Math.Max(0, saveData?.bandwidthBalance ?? 0);
+
+            VisualElement filterBar = new();
+            filterBar.AddToClassList("collection-actions");
+            AddPackageFilterButton(filterBar, null, "all");
+            AddPackageFilterButton(filterBar, PackageSlot.Kernel, "kernel");
+            AddPackageFilterButton(filterBar, PackageSlot.Runtime, "runtime");
+            AddPackageFilterButton(filterBar, PackageSlot.Daemon, "daemon");
+            _list.Add(filterBar);
+            _list.Add(BuildDetailLine("wallet", $"Cache={cache} Bandwidth={bandwidth}"));
+
+            List<OwnedPackageInstance> packages = BuildSortedOwnedPackages(_packageInventoryFilter);
+            _packageInventory = packages;
+
+            if (packages.Count == 0)
+            {
+                _detail.Add(new Label("no packages owned") { name = "CollectionEmptyTitle" });
+                _detail.Add(new Label("pull packages via gacha, or check a different slot filter") { name = "CollectionEmptyHint" });
+                return;
+            }
+
+            _selectedPackageInventoryIndex = Mathf.Clamp(_selectedPackageInventoryIndex, 0, packages.Count - 1);
+            PackageSlot? lastSlot = null;
+            for (int i = 0; i < packages.Count; i++)
+            {
+                int index = i;
+                OwnedPackageInstance owned = packages[i];
+                if (!_packageInventoryFilter.HasValue && owned.Definition.Slot != lastSlot)
+                {
+                    lastSlot = owned.Definition.Slot;
+                    Label header = new(lastSlot.Value.ToString().ToUpperInvariant());
+                    header.AddToClassList("detail-section-title");
+                    _list.Add(header);
+                }
+
+                VisualElement row = BuildPackageInventoryRow(owned, cache, bandwidth);
+                row.RegisterCallback<PointerEnterEvent>(_ => SelectPackageInventory(index));
+                row.RegisterCallback<ClickEvent>(_ => SelectPackageInventory(index));
+                _list.Add(row);
+                _rows.Add(row);
+            }
+
+            SelectPackageInventory(_selectedPackageInventoryIndex);
+        }
+
+        private void AddPackageFilterButton(VisualElement target, PackageSlot? slot, string label)
+        {
+            Button button = new(() =>
+            {
+                _packageInventoryFilter = slot;
+                _selectedPackageInventoryIndex = 0;
+                RenderPackages();
+                ViewChanged?.Invoke();
+            })
+            {
+                text = label,
+                focusable = false
+            };
+            button.AddToClassList("collection-tab");
+            button.EnableInClassList("selected", _packageInventoryFilter == slot);
+            target.Add(button);
+        }
+
+        private List<OwnedPackageInstance> BuildSortedOwnedPackages(PackageSlot? filter)
+        {
+            List<OwnedPackageInstance> packages = new();
+            if (_playerCollection == null)
+            {
+                return packages;
+            }
+
+            for (int i = 0; i < _playerCollection.OwnedPackageInstances.Count; i++)
+            {
+                OwnedPackageInstance owned = _playerCollection.OwnedPackageInstances[i];
+                if (owned?.Definition == null || (filter.HasValue && owned.Definition.Slot != filter.Value))
+                {
+                    continue;
+                }
+
+                packages.Add(owned);
+            }
+
+            packages.Sort((a, b) =>
+            {
+                int slotCompare = ((int)a.Definition.Slot).CompareTo((int)b.Definition.Slot);
+                if (slotCompare != 0)
+                {
+                    return slotCompare;
+                }
+
+                int rarityCompare = b.Definition.Rarity.CompareTo(a.Definition.Rarity);
+                return rarityCompare != 0 ? rarityCompare : string.Compare(PackageName(a.Definition), PackageName(b.Definition), StringComparison.OrdinalIgnoreCase);
+            });
+
+            return packages;
+        }
+
+        private VisualElement BuildPackageInventoryRow(OwnedPackageInstance owned, int cache, int bandwidth)
+        {
+            PackageDefinition package = owned.Definition;
+            VisualElement row = new();
+            row.AddToClassList("collection-row");
+            row.AddToClassList("package-slot-row");
+
+            Label name = new(PackageName(package));
+            name.AddToClassList("package-slot-name");
+            name.style.color = new StyleColor(RarityPresentation.ForStars(package.Rarity).Color);
+            row.Add(name);
+
+            Label slot = new(package.Slot.ToString().ToUpperInvariant());
+            slot.AddToClassList("package-slot-label");
+            row.Add(slot);
+
+            RarityStyle rarity = RarityPresentation.ForStars(package.Rarity);
+            Label rarityLabel = new(rarity.Badge);
+            rarityLabel.AddToClassList("package-slot-rarity");
+            rarityLabel.AddToClassList(rarity.ClassName);
+            row.Add(rarityLabel);
+
+            Label level = new($"Lv {owned.UpgradeLevel}/{PackageTuning.MaxPackageLevel}");
+            level.AddToClassList("package-slot-level");
+            row.Add(level);
+
+            Label effect = new(OneLineEffect(package, owned.UpgradeLevel, null));
+            effect.AddToClassList("package-slot-effect");
+            row.Add(effect);
+
+            string equippedOn = FindEquippedDistroName(package.Id);
+            if (equippedOn != null)
+            {
+                Label tag = new($"@ {equippedOn}");
+                tag.AddToClassList("package-notice");
+                row.Add(tag);
+            }
+
+            if (CanAffordNextUpgrade(owned, cache, bandwidth))
+            {
+                Label hint = new("upgrade");
+                hint.AddToClassList("unit-overview-upgrade");
+                row.Add(hint);
+            }
+
+            return row;
+        }
+
+        private static bool CanAffordNextUpgrade(OwnedPackageInstance owned, int cache, int bandwidth)
+        {
+            if (owned.UpgradeLevel >= PackageTuning.MaxPackageLevel)
+            {
+                return false;
+            }
+
+            int nextLevel = owned.UpgradeLevel + 1;
+            int rarity = owned.Definition.Rarity;
+            return cache >= PackageTuning.GetUpgradeCacheCost(nextLevel, rarity) && bandwidth >= PackageTuning.GetUpgradeBandwidthCost(nextLevel, rarity);
+        }
+
+        private string FindEquippedDistroName(string packageId)
+        {
+            if (_packageLoadout == null || string.IsNullOrWhiteSpace(packageId))
+            {
+                return null;
+            }
+
+            for (int i = 0; i < _units.Count; i++)
+            {
+                DistroDefinition unit = _units[i];
+                if (unit == null)
+                {
+                    continue;
+                }
+
+                foreach (KeyValuePair<PackageSlot, string> equipped in _packageLoadout.GetEquippedPackageIds(unit.Id))
+                {
+                    if (string.Equals(equipped.Value, packageId, StringComparison.OrdinalIgnoreCase))
+                    {
+                        return DistroPresentation.DisplayName(unit);
+                    }
+                }
+            }
+
+            return null;
+        }
+
+        private void SelectPackageInventory(int index)
+        {
+            if (_packageInventory.Count == 0)
+            {
+                return;
+            }
+
+            _selectedPackageInventoryIndex = Mathf.Clamp(index, 0, _packageInventory.Count - 1);
+            ApplySelection(_selectedPackageInventoryIndex);
+            RenderPackageInventoryDetail(_packageInventory[_selectedPackageInventoryIndex]);
+        }
+
+        private void RenderPackageInventoryDetail(OwnedPackageInstance owned)
+        {
+            _detail.Clear();
+            if (owned?.Definition == null)
+            {
+                _detail.Add(new Label("no packages owned") { name = "CollectionEmptyTitle" });
+                return;
+            }
+
+            PackageDefinition package = owned.Definition;
+            SaveData saveData = _getSaveData?.Invoke();
+            int cache = Math.Max(0, saveData?.cacheBalance ?? 0);
+            int bandwidth = Math.Max(0, saveData?.bandwidthBalance ?? 0);
+
+            Label name = new(PackageName(package));
+            name.AddToClassList("collection-detail-name");
+            name.style.color = new StyleColor(RarityPresentation.ForStars(package.Rarity).Color);
+            _detail.Add(name);
+
+            _detail.Add(BuildDetailLine("wallet", $"Cache={cache} Bandwidth={bandwidth}"));
+            _detail.Add(BuildDetailLine("slot", package.Slot.ToString()));
+            _detail.Add(BuildDetailLine("rarity", RarityPresentation.ForStars(package.Rarity).Stars));
+            _detail.Add(BuildDetailLine("level", $"Lv {owned.UpgradeLevel}/{PackageTuning.MaxPackageLevel}"));
+            _detail.Add(BuildDetailLine("equipped", FindEquippedDistroName(package.Id) ?? "not equipped"));
+            _detail.Add(BuildDetailLine("current", FormatPackageEffect(package, owned.UpgradeLevel, null)));
+
+            int nextLevel = owned.UpgradeLevel + 1;
+            bool maxLevel = owned.UpgradeLevel >= PackageTuning.MaxPackageLevel;
+            int upgradeCacheCost = maxLevel ? 0 : PackageTuning.GetUpgradeCacheCost(nextLevel, package.Rarity);
+            int upgradeBandwidthCost = maxLevel ? 0 : PackageTuning.GetUpgradeBandwidthCost(nextLevel, package.Rarity);
+            bool canUpgrade = !maxLevel && cache >= upgradeCacheCost && bandwidth >= upgradeBandwidthCost && _tryUpgradePackage != null;
+            string upgradeState = maxLevel ? "max level" : cache < upgradeCacheCost ? "insufficient cache" : bandwidth < upgradeBandwidthCost ? "insufficient bandwidth" : "ready";
+            string nextPreview = maxLevel
+                ? "max level reached"
+                : $"{FormatPackageEffect(package, owned.UpgradeLevel, null)} -> {FormatPackageEffect(package, nextLevel, null)}";
+            _detail.Add(BuildDetailLine("next", nextPreview));
+            _detail.Add(BuildCompactUpgradeCommand($"> make upgrade  (Cache {upgradeCacheCost} / Bandwidth {upgradeBandwidthCost})", upgradeState, canUpgrade, () => UpgradePackage(owned)));
+
+            bool equipped = _packageLoadout != null && _packageLoadout.IsEquipped(package.Id);
+            int scrapCache = PackageTuning.GetCacheForRarity(package.Rarity) + PackageTuning.GetRefundedInvestedCache(owned.UpgradeLevel, package.Rarity);
+            int scrapBandwidth = PackageTuning.GetRefundedInvestedBandwidth(owned.UpgradeLevel, package.Rarity);
+            bool confirming = string.Equals(_pendingScrapPackageId, package.Id, StringComparison.OrdinalIgnoreCase);
+            string scrapCommand = confirming ? $"> rm --purge --yes  (+{scrapCache} cache/+{scrapBandwidth} bandwidth)" : $"> rm --purge  (+{scrapCache} cache)";
+            string scrapState = equipped ? "equipped: unequip first" : confirming ? "confirm permanent scrap" : "requires confirm";
+            _detail.Add(BuildCompactUpgradeCommand(scrapCommand, scrapState, !equipped && _tryScrapPackage != null, () => ScrapPackage(owned)));
+        }
+
         private VisualElement BuildUnitOverviewRow(DistroDefinition unit)
         {
             VisualElement row = new();
@@ -814,82 +1095,6 @@ namespace KernelPanic.UI
             }
         }
 
-        private void AddPackageLoadoutPanel(VisualElement target, DistroDefinition unit)
-        {
-            if (unit == null || _packageLoadout == null || _playerCollection == null)
-            {
-                return;
-            }
-
-            Label title = new("meta packages (persistent)");
-            title.AddToClassList("detail-section-title");
-            target.Add(title);
-            target.Add(BuildDetailLine("scope", "package slots persist across every run; card loadout is run-only"));
-
-            AddPackageSlot(target, unit, PackageSlot.Kernel);
-            AddPackageSlot(target, unit, PackageSlot.Runtime);
-            AddPackageSlot(target, unit, PackageSlot.Daemon);
-        }
-
-        private void AddPackageSlot(VisualElement target, DistroDefinition unit, PackageSlot slot)
-        {
-            VisualElement slotBlock = new();
-            slotBlock.AddToClassList("package-slot-block");
-            PackageDefinition equipped = _packageLoadout.GetEquippedPackage(unit.Id, slot);
-            string equippedName = equipped == null ? "empty" : PackageName(equipped);
-            slotBlock.Add(BuildDetailLine(slot.ToString().ToLowerInvariant(), equippedName));
-            if (equipped != null)
-            {
-                Label effect = new(equipped.Description);
-                effect.AddToClassList("package-description");
-                slotBlock.Add(effect);
-            }
-
-            for (int i = 0; i < _playerCollection.OwnedPackages.Count; i++)
-            {
-                PackageDefinition package = _playerCollection.OwnedPackages[i];
-                if (package == null || package.Slot != slot)
-                {
-                    continue;
-                }
-
-                bool isEquipped = equipped != null && string.Equals(equipped.Id, package.Id, StringComparison.OrdinalIgnoreCase);
-                VisualElement row = new();
-                row.AddToClassList("package-row");
-                row.EnableInClassList("equipped", isEquipped);
-                row.EnableInClassList($"rarity-{package.Rarity}", true);
-                row.RegisterCallback<ClickEvent>(_ => TogglePackage(unit, slot, package, isEquipped));
-
-                VisualElement summary = new();
-                summary.AddToClassList("package-summary");
-                Label marker = new(isEquipped ? "[x]" : "[ ]");
-                marker.AddToClassList("package-marker");
-                Label name = new(PackageName(package));
-                name.AddToClassList("package-name");
-                Label meta = new($"{package.Rarity}* / {package.Slot}");
-                meta.AddToClassList("package-meta");
-                summary.Add(marker);
-                summary.Add(name);
-                summary.Add(meta);
-                row.Add(summary);
-
-                Label description = new(package.Description);
-                description.AddToClassList("package-description");
-                row.Add(description);
-
-                if (package.IsIntendedFor(unit.Id))
-                {
-                    Label intended = new("on-distro");
-                    intended.AddToClassList("package-notice");
-                    row.Add(intended);
-                }
-
-                slotBlock.Add(row);
-            }
-
-            target.Add(slotBlock);
-        }
-
         private void TogglePackage(DistroDefinition unit, PackageSlot slot, PackageDefinition package, bool isEquipped)
         {
             if (unit == null || package == null || _packageLoadout == null)
@@ -989,72 +1194,11 @@ namespace KernelPanic.UI
             }
         }
 
-        private void AddPackageInventoryPanel(VisualElement target)
-        {
-            if (_playerCollection == null)
-            {
-                return;
-            }
-
-            SaveData saveData = _getSaveData?.Invoke();
-            int cache = Math.Max(0, saveData?.cacheBalance ?? 0);
-            int bandwidth = Math.Max(0, saveData?.bandwidthBalance ?? 0);
-            Label title = new("package inventory");
-            title.AddToClassList("detail-section-title");
-            target.Add(title);
-            target.Add(BuildDetailLine("wallet", $"Cache={cache} Bandwidth={bandwidth}"));
-            target.Add(BuildDetailLine("scrap", "permanent; equipped packages are protected, unequip first"));
-
-            for (int i = 0; i < _playerCollection.OwnedPackageInstances.Count; i++)
-            {
-                OwnedPackageInstance owned = _playerCollection.OwnedPackageInstances[i];
-                PackageDefinition package = owned?.Definition;
-                if (package == null)
-                {
-                    continue;
-                }
-
-                VisualElement row = new();
-                row.AddToClassList("package-row");
-                row.EnableInClassList($"rarity-{package.Rarity}", true);
-
-                VisualElement summary = new();
-                summary.AddToClassList("package-summary");
-                Label name = new(PackageName(package));
-                name.AddToClassList("package-name");
-                Label meta = new($"{package.Rarity}* / {package.Slot} / Lv {owned.UpgradeLevel}/{PackageTuning.MaxPackageLevel}");
-                meta.AddToClassList("package-meta");
-                summary.Add(name);
-                summary.Add(meta);
-                row.Add(summary);
-
-                Label description = new(FormatPackageEffect(package, owned.UpgradeLevel, null));
-                description.AddToClassList("package-description");
-                row.Add(description);
-
-                int nextLevel = owned.UpgradeLevel + 1;
-                bool maxLevel = owned.UpgradeLevel >= PackageTuning.MaxPackageLevel;
-                int cacheCost = maxLevel ? 0 : PackageTuning.GetUpgradeCacheCost(nextLevel, package.Rarity);
-                int bandwidthCost = maxLevel ? 0 : PackageTuning.GetUpgradeBandwidthCost(nextLevel, package.Rarity);
-                bool canUpgrade = !maxLevel && cache >= cacheCost && bandwidth >= bandwidthCost && _tryUpgradePackage != null;
-                string upgradeState = maxLevel ? "max level" : cache < cacheCost ? "insufficient cache" : bandwidth < bandwidthCost ? "insufficient bandwidth" : "ready";
-                row.Add(BuildCompactUpgradeCommand($"> make upgrade  ({cacheCost} cache/{bandwidthCost} bandwidth)", upgradeState, canUpgrade, () => UpgradePackage(owned)));
-
-                bool equipped = _packageLoadout != null && _packageLoadout.IsEquipped(package.Id);
-                int scrapCache = PackageTuning.GetCacheForRarity(package.Rarity) + PackageTuning.GetRefundedInvestedCache(owned.UpgradeLevel, package.Rarity);
-                int scrapBandwidth = PackageTuning.GetRefundedInvestedBandwidth(owned.UpgradeLevel, package.Rarity);
-                bool confirming = string.Equals(_pendingScrapPackageId, package.Id, StringComparison.OrdinalIgnoreCase);
-                string scrapCommand = confirming ? $"> rm --purge --yes  (+{scrapCache} cache/+{scrapBandwidth} bandwidth)" : $"> rm --purge  (+{scrapCache} cache)";
-                string scrapState = equipped ? "equipped: unequip first" : confirming ? "confirm permanent scrap" : "requires confirm";
-                row.Add(BuildCompactUpgradeCommand(scrapCommand, scrapState, !equipped && _tryScrapPackage != null, () => ScrapPackage(owned)));
-                target.Add(row);
-            }
-        }
-
         private void UpgradePackage(OwnedPackageInstance package)
         {
+            bool inventoryMode = _mode == CollectionMode.Packages;
             PackageUpgradeResult result = _tryUpgradePackage == null ? new PackageUpgradeResult(false, PackageUpgradeFailureReason.NotOwned, 0, 0, 0) : _tryUpgradePackage(package);
-            RenderUnitDetail(_units[_selectedUnitIndex]);
+            RefreshAfterPackageAction(inventoryMode);
             if (!result.Success)
             {
                 _detail.Add(BuildDetailLine("package upgrade", FormatPackageUpgradeFailure(result.FailureReason)));
@@ -1068,22 +1212,41 @@ namespace KernelPanic.UI
                 return;
             }
 
+            bool inventoryMode = _mode == CollectionMode.Packages;
             if (!string.Equals(_pendingScrapPackageId, package.PackageId, StringComparison.OrdinalIgnoreCase))
             {
                 _pendingScrapPackageId = package.PackageId;
-                RenderUnitDetail(_units[_selectedUnitIndex]);
+                RefreshAfterPackageAction(inventoryMode);
                 return;
             }
 
             PackageScrapResult result = _tryScrapPackage == null ? new PackageScrapResult(false, PackageScrapFailureReason.NotOwned, 0, 0) : _tryScrapPackage(package);
             _pendingScrapPackageId = null;
-            RenderUnitDetail(_units[_selectedUnitIndex]);
+            RefreshAfterPackageAction(inventoryMode);
             if (!result.Success)
             {
                 _detail.Add(BuildDetailLine("package scrap", FormatPackageScrapFailure(result.FailureReason)));
             }
         }
 
+        // Wired upgrade/scrap callbacks (MainMenuController) may call RefreshUnits() internally,
+        // which forces CollectionMode.Units and re-renders. Restore the caller's actual view so
+        // the Packages inventory screen (and its keyboard navigation) don't get bumped to Units.
+        private void RefreshAfterPackageAction(bool inventoryMode)
+        {
+            if (inventoryMode)
+            {
+                _mode = CollectionMode.Packages;
+                RenderPackages();
+                return;
+            }
+
+            if (_units.Count > 0)
+            {
+                RenderUnitDetail(_units[_selectedUnitIndex]);
+            }
+        }
+
         private void RenderLanguageDetail(LanguageCatalogEntry language)
         {
             _detail.Clear();
@@ -1579,6 +1742,7 @@ namespace KernelPanic.UI
         {
             Units,
             Languages,
+            Packages,
             UnitDetail,
             CardSubview
         }

Assets/Scripts/UI/GamblingSceneController.cs

@@ -297,20 +297,12 @@ namespace KernelPanic.UI
                 string displayName = reward.DisplayName;
                 if (reward.RewardType == GachaRewardType.Package)
                 {
-                    PackageDefinition package = GrantRandomPackageByRarity(pending.PackageDatabase, collection, saveData, reward.StarRating, out bool duplicatePackage);
+                    PackageDefinition package = GrantRandomPackageByRarity(pending.PackageDatabase, collection, saveData, reward.StarRating, out bool duplicatePackage, out int cacheAwarded);
                     if (package != null)
                     {
                         displayName = string.IsNullOrWhiteSpace(package.DisplayName) ? package.Id : package.DisplayName;
-                        if (duplicatePackage)
+                        outcomeKind = duplicatePackage ? PullOutcomeKind.Dupe : PullOutcomeKind.Granted;
-                        {
+                        merges = cacheAwarded;
-                            outcomeKind = PullOutcomeKind.Dupe;
-                            merges = Mathf.Max(1, GachaTuning.MergesPerDupe);
-                            saveData.packageMerges += merges;
-                        }
-                        else
-                        {
-                            outcomeKind = PullOutcomeKind.Granted;
-                        }
                     }
                 }
 
@@ -373,7 +365,7 @@ namespace KernelPanic.UI
             SummaryTotals totals = CalculateTotals();
             if (!animate)
             {
-                summaryTotalsLabel.text = FormatTotals(totals.Units, totals.Merges, totals.LanguagesText);
+                summaryTotalsLabel.text = FormatTotals(totals.Units, totals.Merges, totals.Cache, totals.LanguagesText);
                 return;
             }
 
@@ -387,7 +379,8 @@ namespace KernelPanic.UI
                     float t = capturedStep / (float)SummaryTickSteps;
                     int units = Mathf.RoundToInt(Mathf.Lerp(0, totals.Units, t));
                     int merges = Mathf.RoundToInt(Mathf.Lerp(0, totals.Merges, t));
-                    summaryTotalsLabel.text = FormatTotals(units, merges, capturedStep == SummaryTickSteps ? totals.LanguagesText : "...");
+                    int cache = Mathf.RoundToInt(Mathf.Lerp(0, totals.Cache, t));
+                    summaryTotalsLabel.text = FormatTotals(units, merges, cache, capturedStep == SummaryTickSteps ? totals.LanguagesText : "...");
                     if (capturedStep == SummaryTickSteps)
                     {
                         summaryTotalsLabel.RemoveFromClassList("summary-tick");
@@ -400,6 +393,7 @@ namespace KernelPanic.UI
         {
             int units = 0;
             int merges = 0;
+            int cache = 0;
             HashSet<Language> languages = new();
             for (int i = 0; i < rewards.Count; i++)
             {
@@ -408,21 +402,30 @@ namespace KernelPanic.UI
                     units++;
                 }
 
-                merges += rewards[i].MergesAwarded;
+                if (rewards[i].RewardType == GachaRewardType.Package)
+                {
+                    cache += rewards[i].MergesAwarded;
+                }
+                else
+                {
+                    merges += rewards[i].MergesAwarded;
+                }
+
                 for (int languageIndex = 0; languageIndex < rewards[i].LanguagesUnlocked.Count; languageIndex++)
                 {
                     languages.Add(rewards[i].LanguagesUnlocked[languageIndex]);
                 }
             }
 
-            return new SummaryTotals(units, merges, FormatLanguages(languages));
+            return new SummaryTotals(units, merges, cache, FormatLanguages(languages));
         }
 
-        private static string FormatTotals(int units, int merges, string languagesText)
+        private static string FormatTotals(int units, int merges, int cache, string languagesText)
         {
             string unitText = units == 0 ? "none" : units.ToString();
             string mergeText = merges == 0 ? "none" : merges.ToString();
-            return $"units gained: {unitText}   merges: {mergeText}   languages unlocked: {languagesText}";
+            string cacheText = cache == 0 ? "none" : cache.ToString();
+            return $"units gained: {unitText}   merges: {mergeText}   cache: {cacheText}   languages unlocked: {languagesText}";
         }
 
         private static string FormatLanguages(HashSet<Language> languages)
@@ -468,9 +471,10 @@ namespace KernelPanic.UI
             return collection;
         }
 
-        private static PackageDefinition GrantRandomPackageByRarity(PackageDatabase packageDatabase, PlayerCollection collection, SaveData saveData, int rarity, out bool duplicate)
+        private static PackageDefinition GrantRandomPackageByRarity(PackageDatabase packageDatabase, PlayerCollection collection, SaveData saveData, int rarity, out bool duplicate, out int cacheAwarded)
         {
             duplicate = false;
+            cacheAwarded = 0;
             int count = packageDatabase == null ? 0 : packageDatabase.CountByRarity(rarity);
             if (count <= 0)
             {
@@ -484,8 +488,15 @@ namespace KernelPanic.UI
                 return null;
             }
 
-            duplicate = collection.IsPackageOwned(package.Id) || saveData.ownedPackageIds.Exists(id => string.Equals(id, package.Id, StringComparison.OrdinalIgnoreCase));
+            duplicate = collection.IsPackageOwned(package.Id);
-            if (!duplicate)
+            if (duplicate)
+            {
+                // Packages are unique-per-type: a dupe never creates a second instance, it
+                // auto-scraps into Cache immediately, mirroring the distro dupe -> Merges path.
+                cacheAwarded = PackageTuning.GetCacheForRarity(package.Rarity);
+                saveData.cacheBalance += cacheAwarded;
+            }
+            else
             {
                 collection.AddPackageSilently(package);
                 saveData.ownedPackages.Add(new OwnedPackageSaveEntry { id = package.Id, upgradeLevel = 0 });
@@ -758,15 +769,17 @@ namespace KernelPanic.UI
 
         private readonly struct SummaryTotals
         {
-            public SummaryTotals(int units, int merges, string languagesText)
+            public SummaryTotals(int units, int merges, int cache, string languagesText)
             {
                 Units = units;
                 Merges = merges;
+                Cache = cache;
                 LanguagesText = languagesText;
             }
 
             public int Units { get; }
             public int Merges { get; }
+            public int Cache { get; }
             public string LanguagesText { get; }
         }
 

Assets/Scripts/UI/MainMenuController.cs

@@ -140,6 +140,7 @@ namespace KernelPanic.UI
         private Button _rootCreditExchangeCloseButton;
         private Button _collectionUnitsButton;
         private Button _collectionLanguagesButton;
+        private Button _collectionPackagesButton;
         private readonly ScreenFrameController _runSetupFrame = new();
         private readonly ScreenFrameController _collectionFrame = new();
         private readonly ScreenFrameController _gachaFrame = new();
@@ -156,7 +157,7 @@ namespace KernelPanic.UI
         private int _selectedCommandIndex;
         private int _selectedPackageIndex;
         private string _runSetupNotice;
-        private bool _collectionShowingLanguages;
+        private CollectionTopTab _collectionTab;
         private float _bootIntroElapsed;
         private int _bootIntroCharacterCount;
         private bool _cursorVisible;
@@ -293,6 +294,7 @@ namespace KernelPanic.UI
             _rootCreditExchangeCloseButton = _root.Q<Button>("RootCreditExchangeCloseButton");
             _collectionUnitsButton = _root.Q<Button>("CollectionUnitsButton");
             _collectionLanguagesButton = _root.Q<Button>("CollectionLanguagesButton");
+            _collectionPackagesButton = _root.Q<Button>("CollectionPackagesButton");
         }
 
         private void LoadSharedStyles()
@@ -415,6 +417,7 @@ namespace KernelPanic.UI
             collectionScreen.ViewChanged += SyncCollectionFrame;
             _collectionUnitsButton.RegisterCallback<ClickEvent>(HandleCollectionUnitsTabClicked);
             _collectionLanguagesButton.RegisterCallback<ClickEvent>(HandleCollectionLanguagesTabClicked);
+            _collectionPackagesButton.RegisterCallback<ClickEvent>(HandleCollectionPackagesTabClicked);
         }
 
         private void UnregisterCallbacks()
@@ -484,6 +487,7 @@ namespace KernelPanic.UI
             collectionScreen.ViewChanged -= SyncCollectionFrame;
             _collectionUnitsButton.UnregisterCallback<ClickEvent>(HandleCollectionUnitsTabClicked);
             _collectionLanguagesButton.UnregisterCallback<ClickEvent>(HandleCollectionLanguagesTabClicked);
+            _collectionPackagesButton.UnregisterCallback<ClickEvent>(HandleCollectionPackagesTabClicked);
         }
 
         private void HandleRootCreditsToEntropyClicked()
@@ -652,9 +656,18 @@ namespace KernelPanic.UI
             evt.StopPropagation();
         }
 
+        private void HandleCollectionPackagesTabClicked(ClickEvent evt)
+        {
+            ShowCollectionPackages();
+            evt.StopPropagation();
+        }
+
         private void LoadMetaState()
         {
             _saveData = _saveService.Load();
+            // Snapshot before the next EnsureLists() call below, which re-runs NormalizeOwnedPackages
+            // and would otherwise clear this (no new duplicates survive a second normalization pass).
+            List<CollapsedPackageDuplicate> collapsedPackageDuplicates = new(_saveData.collapsedPackageDuplicates);
             _saveData.EnsureLists();
             _wallet.SetBalance(_saveData.entropyBalance);
 
@@ -678,6 +691,7 @@ namespace KernelPanic.UI
                 }
             }
 
+            MigrateCollapsedPackageDuplicatesToCache(collapsedPackageDuplicates);
             LoadPackageLoadoutsFromSave();
 
             for (int i = 0; i < _saveData.bannerPoolIds.Count; i++)
@@ -704,6 +718,18 @@ namespace KernelPanic.UI
             SaveCurrentState();
         }
 
+        private void MigrateCollapsedPackageDuplicatesToCache(List<CollapsedPackageDuplicate> collapsedPackageDuplicates)
+        {
+            foreach (CollapsedPackageDuplicate duplicate in collapsedPackageDuplicates)
+            {
+                PackageDefinition package = packageDatabase == null ? null : packageDatabase.FindById(duplicate.Id);
+                int rarity = package == null ? 1 : package.Rarity;
+                int cache = PackageTuning.GetCacheForRarity(rarity) * duplicate.ExtraCount;
+                _saveData.cacheBalance += cache;
+                Debug.Log($"Migrated {duplicate.ExtraCount} duplicate save copies of package '{duplicate.Id}' into +{cache} Cache (packages are unique-per-type; kept the highest-level instance).");
+            }
+        }
+
         private void AddAllFourStarDistrosToBeginnerBannerPool()
         {
             if (distroDatabase == null)
@@ -769,9 +795,8 @@ namespace KernelPanic.UI
                 return;
             }
 
-            _collectionShowingLanguages = false;
+            _collectionTab = CollectionTopTab.Units;
-            _collectionUnitsButton.EnableInClassList(SelectedClassName, true);
+            ApplyCollectionTabButtons();
-            _collectionLanguagesButton.EnableInClassList(SelectedClassName, false);
             collectionScreen.RefreshUnits(_playerCollection.OwnedUnits);
             collectionScreen.ShowUnitDetail(unit, false);
             SyncCollectionFrame();
@@ -1917,31 +1942,49 @@ namespace KernelPanic.UI
 
         private void ShowCollectionUnits()
         {
-            _collectionShowingLanguages = false;
+            _collectionTab = CollectionTopTab.Units;
-            _collectionUnitsButton.EnableInClassList(SelectedClassName, true);
+            ApplyCollectionTabButtons();
-            _collectionLanguagesButton.EnableInClassList(SelectedClassName, false);
             collectionScreen.RefreshUnits(_playerCollection.OwnedUnits);
             SyncCollectionFrame();
         }
 
         private void ShowCollectionLanguages()
         {
-            _collectionShowingLanguages = true;
+            _collectionTab = CollectionTopTab.Languages;
-            _collectionUnitsButton.EnableInClassList(SelectedClassName, false);
+            ApplyCollectionTabButtons();
-            _collectionLanguagesButton.EnableInClassList(SelectedClassName, true);
             collectionScreen.ShowLanguages();
             SyncCollectionFrame();
         }
 
+        private void ShowCollectionPackages()
+        {
+            _collectionTab = CollectionTopTab.Packages;
+            ApplyCollectionTabButtons();
+            collectionScreen.ShowPackages();
+            SyncCollectionFrame();
+        }
+
+        private void ApplyCollectionTabButtons()
+        {
+            _collectionUnitsButton.EnableInClassList(SelectedClassName, _collectionTab == CollectionTopTab.Units);
+            _collectionLanguagesButton.EnableInClassList(SelectedClassName, _collectionTab == CollectionTopTab.Languages);
+            _collectionPackagesButton.EnableInClassList(SelectedClassName, _collectionTab == CollectionTopTab.Packages);
+        }
+
         private void ToggleCollectionTab()
         {
-            if (_collectionShowingLanguages)
+            switch (_collectionTab)
             {
-                ShowCollectionUnits();
+                case CollectionTopTab.Units:
-                return;
+                    ShowCollectionLanguages();
+                    return;
+                case CollectionTopTab.Languages:
+                    ShowCollectionPackages();
+                    return;
+                default:
+                    ShowCollectionUnits();
+                    return;
             }
-
-            ShowCollectionLanguages();
         }
 
         private void SyncCollectionFrame()
@@ -2034,6 +2077,13 @@ namespace KernelPanic.UI
             Settings
         }
 
+        private enum CollectionTopTab
+        {
+            Units,
+            Languages,
+            Packages
+        }
+
         private sealed class CommandMenuEntry
         {
             private readonly Label _cursor;

Assets/UI/CollectionScreen.uxml

@@ -8,6 +8,7 @@
                 <ui:VisualElement class="collection-actions">
                     <ui:Button name="CollectionUnitsButton" text="units" focusable="false" class="collection-tab" />
                     <ui:Button name="CollectionLanguagesButton" text="languages" focusable="false" class="collection-tab" />
+                    <ui:Button name="CollectionPackagesButton" text="packages" focusable="false" class="collection-tab" />
                 </ui:VisualElement>
                 <ui:VisualElement name="CollectionContent" class="collection-shell">
                     <ui:ScrollView name="CollectionList" class="collection-list" />