diff --git a/src/main/scala/ocelot/desktop/OcelotDesktop.scala b/src/main/scala/ocelot/desktop/OcelotDesktop.scala
index 64a53bb..35d6c40 100644
--- a/src/main/scala/ocelot/desktop/OcelotDesktop.scala
+++ b/src/main/scala/ocelot/desktop/OcelotDesktop.scala
@@ -2,6 +2,7 @@ package ocelot.desktop
 
 import buildinfo.BuildInfo
 import li.flor.nativejfilechooser.NativeJFileChooser
+import ocelot.desktop.inventory.Items
 import ocelot.desktop.ui.UiHandler
 import ocelot.desktop.ui.swing.SplashScreen
 import ocelot.desktop.ui.widget._
@@ -64,6 +65,8 @@ object OcelotDesktop extends Logging {
     Messages.load(Source.fromURL(getClass.getResource("/ocelot/desktop/messages.txt")))
     ColorScheme.load(Source.fromURL(getClass.getResource("/ocelot/desktop/colorscheme.txt")))
 
+    Items.init()
+
     splashScreen.setStatus("Initializing GUI...", 0.30f)
     createWorkspace()
 
diff --git a/src/main/scala/ocelot/desktop/inventory/Item.scala b/src/main/scala/ocelot/desktop/inventory/Item.scala
index 6629fd0..d1ecf39 100644
--- a/src/main/scala/ocelot/desktop/inventory/Item.scala
+++ b/src/main/scala/ocelot/desktop/inventory/Item.scala
@@ -64,6 +64,7 @@ trait Item {
     *
     * @example {{{
     *            override protected def fillTooltipBody(body: Widget): Unit = {
+    *              super.fillTooltipBody(body)
     *              body.children :+= new Label {
     *                override def text: String = "Hello world"
     *                override def color: Color = Color.Grey
diff --git a/src/main/scala/ocelot/desktop/inventory/ItemFactory.scala b/src/main/scala/ocelot/desktop/inventory/ItemFactory.scala
index 8d3ea99..23d5426 100644
--- a/src/main/scala/ocelot/desktop/inventory/ItemFactory.scala
+++ b/src/main/scala/ocelot/desktop/inventory/ItemFactory.scala
@@ -51,4 +51,9 @@ trait ItemFactory {
     * Constructs a new item instance.
     */
   def build(): I
+
+  /**
+    * Returns a list of recoverers provided by the factory,
+    */
+  def recoverers: Iterable[ItemRecoverer[_, _]]
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/ItemRecoverer.scala b/src/main/scala/ocelot/desktop/inventory/ItemRecoverer.scala
index 4bf4591..7a41969 100644
--- a/src/main/scala/ocelot/desktop/inventory/ItemRecoverer.scala
+++ b/src/main/scala/ocelot/desktop/inventory/ItemRecoverer.scala
@@ -1,12 +1,18 @@
 package ocelot.desktop.inventory
 
+import scala.reflect.{ClassTag, classTag}
+
 /**
   * Allows recovering an [[Item]] from [[S]] (typically an [[totoro.ocelot.brain.entity.traits.Entity Entity]]).
   *
   * This is used for migration from old saves before the inventory system was introduced to Ocelot Desktop.
   */
-trait ItemRecoverer[S] {
-  type I <: Item
+final class ItemRecoverer[S: ClassTag, I <: Item](f: S => I) {
+  val sourceClass: Class[_] = classTag[S].runtimeClass
 
-  def recover(source: S): I
+  def recover(source: S): I = f(source)
+}
+
+object ItemRecoverer {
+  def apply[S: ClassTag, I <: Item](f: S => I): ItemRecoverer[S, I] = new ItemRecoverer(f)
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/Items.scala b/src/main/scala/ocelot/desktop/inventory/Items.scala
new file mode 100644
index 0000000..f0cf262
--- /dev/null
+++ b/src/main/scala/ocelot/desktop/inventory/Items.scala
@@ -0,0 +1,140 @@
+package ocelot.desktop.inventory
+
+import ocelot.desktop.graphics.IconDef
+import ocelot.desktop.inventory.item._
+import ocelot.desktop.util.Logging
+import ocelot.desktop.util.ReflectionUtils.linearizationOrder
+import totoro.ocelot.brain.loot.Loot
+import totoro.ocelot.brain.util.ExtendedTier.ExtendedTier
+import totoro.ocelot.brain.util.Tier.Tier
+import totoro.ocelot.brain.util.{ExtendedTier, Tier}
+
+import scala.collection.mutable
+import scala.collection.mutable.ArrayBuffer
+
+object Items extends Logging {
+  private val _groups = ArrayBuffer.empty[ItemGroup]
+  private val _recoverers = mutable.Map.empty[Class[_], ItemRecoverer[_, _]]
+
+  // this is just to force load the class during initialization
+  def init(): Unit = {}
+
+  /** Registers a recoverer for [[ItemRecoverer.sourceClass]].
+    */
+  def registerRecoverer(recoverer: ItemRecoverer[_, _]): Unit = {
+    if (!_recoverers.contains(recoverer.sourceClass)) {
+      _recoverers(recoverer.sourceClass) = recoverer
+      logger.info(s"Registered a recoverer for ${recoverer.sourceClass.getName}")
+    }
+  }
+
+  private def registerItemFactoryRecoverers(factory: ItemFactory): Unit = {
+    for (recoverer <- factory.recoverers) {
+      registerRecoverer(recoverer)
+    }
+  }
+
+  def registerSingleton(factory: ItemFactory): Unit = {
+    _groups += SingletonItemGroup(factory.name, factory)
+    registerItemFactoryRecoverers(factory)
+  }
+
+  def registerTiered(name: String, tiers: IterableOnce[Tier])(factory: Tier => ItemFactory): Unit = {
+    val group = TieredItemGroup(name, tiers.iterator.map(tier => (tier, factory(tier))).toSeq)
+    _groups += group
+
+    for ((_, factory) <- group.factories) {
+      registerItemFactoryRecoverers(factory)
+    }
+  }
+
+  def registerExtendedTiered(name: String, tiers: IterableOnce[ExtendedTier])(
+    factory: ExtendedTier => ItemFactory
+  ): Unit = {
+    val group = ExtendedTieredItemGroup(name, tiers.iterator.map(tier => (tier, factory(tier))).toSeq)
+    _groups += group
+
+    for ((_, factory) <- group.factories) {
+      registerItemFactoryRecoverers(factory)
+    }
+  }
+
+  def registerArbitrary(name: String, icon: IconDef, factories: IterableOnce[(String, ItemFactory)]): Unit = {
+    val group = ArbitraryItemGroup(name, icon, factories.iterator.toSeq)
+    _groups += group
+
+    for ((_, factory) <- group.factories) {
+      registerItemFactoryRecoverers(factory)
+    }
+  }
+
+  def groups: Iterable[ItemGroup] = _groups
+
+  /** Attempts to recover an [[Item]] from `source`.
+    *
+    * Checks superclasses and traits while looking for a recoverer.
+    */
+  def recover[A](source: A): Option[Item] = {
+    linearizationOrder(source.getClass.asInstanceOf[Class[_]])
+      .flatMap(_recoverers.get)
+      .map(_.asInstanceOf[ItemRecoverer[_ >: A, _ <: Item]].recover(source))
+      .nextOption()
+  }
+
+  sealed trait ItemGroup {
+    def name: String
+  }
+
+  case class SingletonItemGroup(name: String, factory: ItemFactory) extends ItemGroup
+
+  case class TieredItemGroup(name: String, factories: Seq[(Tier, ItemFactory)]) extends ItemGroup
+
+  case class ExtendedTieredItemGroup(name: String, factories: Seq[(ExtendedTier, ItemFactory)]) extends ItemGroup
+
+  case class ArbitraryItemGroup(name: String, icon: IconDef, factories: Seq[(String, ItemFactory)]) extends ItemGroup
+
+  //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+  registerTiered("CPU", Tier.One to Tier.Three)(new CpuItem.Factory(_))
+  registerTiered("APU", Tier.Two to Tier.Creative)(tier => new ApuItem.Factory(tier.saturatingSub(1)))
+
+  registerExtendedTiered("Memory", ExtendedTier.One to ExtendedTier.ThreeHalf)(new MemoryItem.Factory(_))
+
+  registerTiered("HDD", Tier.One to Tier.Three)(new HddItem.Factory(managed = true, _))
+
+  registerArbitrary(
+    "Floppy",
+    FloppyItem.Factory.Empty.icon,
+    Loot.Floppies.iterator
+      .map(new FloppyItem.Factory.Loot(_))
+      .map(factory => (factory.name, factory)) ++ Some(("Empty", FloppyItem.Factory.Empty))
+  )
+
+  registerArbitrary(
+    "EEPROM",
+    EepromItem.Factory.Empty.icon,
+    Loot.Eeproms.iterator
+      .map(new EepromItem.Factory.Loot(_))
+      .map(factory => (factory.name, factory)) ++ Some(("Empty", EepromItem.Factory.Empty))
+  )
+
+  registerTiered("Graphics Card", Tier.One to Tier.Three)(new GraphicsCardItem.Factory(_))
+  registerSingleton(NetworkCardItem.Factory)
+  registerTiered("Wireless Net. Card", Tier.One to Tier.Two) {
+    case Tier.One => WirelessNetworkCardItem.Tier1.Factory
+    case Tier.Two => WirelessNetworkCardItem.Tier2.Factory
+  }
+  registerSingleton(LinkedCardItem.Factory)
+  registerSingleton(InternetCardItem.Factory)
+  registerTiered("Redstone Card", Tier.One to Tier.Two) {
+    case Tier.One => RedstoneCardItem.Tier1.Factory
+    case Tier.Two => RedstoneCardItem.Tier2.Factory
+  }
+  registerTiered("Data Card", Tier.One to Tier.Three) {
+    case Tier.One   => DataCardItem.Tier1.Factory
+    case Tier.Two   => DataCardItem.Tier2.Factory
+    case Tier.Three => DataCardItem.Tier3.Factory
+  }
+  registerSingleton(SoundCardItem.Factory)
+  registerSingleton(SelfDestructingCardItem.Factory)
+}
diff --git a/src/main/scala/ocelot/desktop/inventory/Recoverers.scala b/src/main/scala/ocelot/desktop/inventory/Recoverers.scala
deleted file mode 100644
index 8fe01b8..0000000
--- a/src/main/scala/ocelot/desktop/inventory/Recoverers.scala
+++ /dev/null
@@ -1,57 +0,0 @@
-package ocelot.desktop.inventory
-
-import ocelot.desktop.inventory.item._
-import ocelot.desktop.util.ReflectionUtils.linearizationOrder
-import totoro.ocelot.brain.entity
-import totoro.ocelot.brain.entity.sound_card.SoundCard
-import totoro.ocelot.brain.entity.traits.Floppy
-
-import scala.collection.mutable
-import scala.reflect.{ClassTag, classTag}
-
-/**
-  * A registry of all available [[ItemRecoverer item recoverers]].
-  */
-object Recoverers {
-  private val recoverers = mutable.HashMap.empty[Class[_], ItemRecoverer[_]]
-
-  /**
-    * Registers a recoverer for [[S]].
-    */
-  def register[S: ClassTag](recoverer: ItemRecoverer[S]): Unit = {
-    recoverers(classTag[S].runtimeClass) = recoverer
-  }
-
-  /**
-    * Attempts to recover an [[Item]] from `source`.
-    *
-    * Checks superclasses and traits while looking for a recoverer.
-    */
-  def recover[A](source: A): Option[Item] = {
-    linearizationOrder(source.getClass.asInstanceOf[Class[_]])
-      .flatMap(recoverers.get)
-      .map(_.asInstanceOf[ItemRecoverer[A]].recover(source))
-      .nextOption()
-  }
-
-  register[entity.APU](ApuItem.Factory)
-  register[entity.CPU](CpuItem.Factory)
-  register[entity.DataCard.Tier1](DataCardItem.Tier1.Factory)
-  register[entity.DataCard.Tier2](DataCardItem.Tier2.Factory)
-  register[entity.DataCard.Tier3](DataCardItem.Tier3.Factory)
-  register[entity.EEPROM](EepromItem.Factory)
-  register[Floppy](FloppyItem.Factory)
-  register[entity.GraphicsCard](GraphicsCardItem.Factory)
-  register[entity.HDDManaged](HddItem.Factory.ManagedRecoverer)
-  register[entity.HDDUnmanaged](HddItem.Factory.UnmangedRecoverer)
-  register[entity.InternetCard](InternetCardItem.Factory)
-  register[entity.LinkedCard](LinkedCardItem.Factory)
-  register[entity.Memory](MemoryItem.Factory)
-  register[entity.NetworkCard](NetworkCardItem.Factory)
-  register[entity.Redstone.Tier1](RedstoneCardItem.Tier1.Factory)
-  register[entity.Redstone.Tier2](RedstoneCardItem.Tier2.Factory)
-  register[entity.SelfDestructingCard](SelfDestructingCardItem.Factory)
-  register[SoundCard](SoundCardItem.Factory)
-  register[entity.WirelessNetworkCard.Tier1](WirelessNetworkCardItem.Tier1.Factory)
-  register[entity.WirelessNetworkCard.Tier2](WirelessNetworkCardItem.Tier2.Factory)
-}
diff --git a/src/main/scala/ocelot/desktop/inventory/SyncedInventory.scala b/src/main/scala/ocelot/desktop/inventory/SyncedInventory.scala
index 5163c3c..4d0ef8d 100644
--- a/src/main/scala/ocelot/desktop/inventory/SyncedInventory.scala
+++ b/src/main/scala/ocelot/desktop/inventory/SyncedInventory.scala
@@ -23,7 +23,7 @@ import scala.annotation.tailrec
   *
   * When a new [[Item]] is added to the Desktop inventory, its [[ComponentItem.component]] is added to
   * the [[brainInventory]]. When a new [[Entity]] is added to the [[brainInventory]], an [[Item]] is recovered from it
-  * by using an appropriate [[ItemRecoverer]] from [[Recoverers the registry]].
+  * by using an appropriate [[ItemRecoverer]] from [[Items the registry]].
   *
   * While synchronizing, relies on the convergence of changes, but guards against stack overflows
   * by limiting the recursion depth.
@@ -170,7 +170,7 @@ trait SyncedInventory extends PersistedInventory with Logging {
 
         case SyncDirection.BrainToDesktop =>
           val item = brainInventory.inventory(slotIndex).get match {
-            case Some(entity) => Recoverers.recover(entity) match {
+            case Some(entity) => Items.recover(entity) match {
               case Some(item) => Some(item.asInstanceOf[I])
 
               case None =>
diff --git a/src/main/scala/ocelot/desktop/inventory/item/ApuItem.scala b/src/main/scala/ocelot/desktop/inventory/item/ApuItem.scala
index 7ef22d3..dbcaacb 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/ApuItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/ApuItem.scala
@@ -26,11 +26,7 @@ object ApuItem {
     override def icon: IconDef = Icons.Apu(_tier)
 
     override def build(): ApuItem = new ApuItem(new APU(_tier))
-  }
 
-  object Factory extends ItemRecoverer[APU] {
-    override type I = ApuItem
-
-    override def recover(source: APU): ApuItem = new ApuItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new ApuItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/CpuItem.scala b/src/main/scala/ocelot/desktop/inventory/item/CpuItem.scala
index debebd7..906f62c 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/CpuItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/CpuItem.scala
@@ -26,11 +26,7 @@ object CpuItem {
     override def icon: IconDef = Icons.Cpu(_tier)
 
     override def build(): CpuItem = new CpuItem(new CPU(_tier))
-  }
 
-  object Factory extends ItemRecoverer[CPU] {
-    override type I = CpuItem
-
-    override def recover(source: CPU): CpuItem = new CpuItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new CpuItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/DataCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/DataCardItem.scala
index b92563b..5e81b95 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/DataCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/DataCardItem.scala
@@ -24,7 +24,7 @@ object DataCardItem {
   }
 
   object Tier1 {
-    object Factory extends Factory with ItemRecoverer[DataCard.Tier1] {
+    object Factory extends Factory {
       override type I = DataCardItem.Tier1
 
       override val itemClass: Class[I] = classOf
@@ -33,7 +33,7 @@ object DataCardItem {
 
       override def build(): DataCardItem.Tier1 = new DataCardItem.Tier1(new DataCard.Tier1)
 
-      override def recover(source: DataCard.Tier1): DataCardItem.Tier1 = new DataCardItem.Tier1(source)
+      override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new DataCardItem.Tier1(_)))
     }
   }
 
@@ -44,7 +44,7 @@ object DataCardItem {
   }
 
   object Tier2 {
-    object Factory extends Factory with ItemRecoverer[DataCard.Tier2] {
+    object Factory extends Factory {
       override type I = DataCardItem.Tier2
 
       override val itemClass: Class[I] = classOf
@@ -53,7 +53,7 @@ object DataCardItem {
 
       override def build(): DataCardItem.Tier2 = new DataCardItem.Tier2(new DataCard.Tier2)
 
-      override def recover(source: DataCard.Tier2): DataCardItem.Tier2 = new DataCardItem.Tier2(source)
+      override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new DataCardItem.Tier2(_)))
     }
   }
 
@@ -64,7 +64,7 @@ object DataCardItem {
   }
 
   object Tier3 {
-    object Factory extends Factory with ItemRecoverer[DataCard.Tier3] {
+    object Factory extends Factory {
       override type I = DataCardItem.Tier3
 
       override val itemClass: Class[I] = classOf
@@ -73,7 +73,7 @@ object DataCardItem {
 
       override def build(): DataCardItem.Tier3 = new DataCardItem.Tier3(new DataCard.Tier3)
 
-      override def recover(source: DataCard.Tier3): DataCardItem.Tier3 = new DataCardItem.Tier3(source)
+      override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new DataCardItem.Tier3(_)))
     }
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/EepromItem.scala b/src/main/scala/ocelot/desktop/inventory/item/EepromItem.scala
index 947f916..b09e373 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/EepromItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/EepromItem.scala
@@ -95,13 +95,11 @@ object EepromItem {
     override def tier: Option[Tier] = None
 
     override def icon: IconDef = Icons.Eeprom
+
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new EepromItem(_)))
   }
 
-  object Factory extends ItemRecoverer[EEPROM] {
-    override type I = EepromItem
-
-    override def recover(source: EEPROM): EepromItem = new EepromItem(source)
-
+  object Factory {
     class Loot(factory: EEPROMFactory) extends Factory {
       override def name: String = factory.label
 
diff --git a/src/main/scala/ocelot/desktop/inventory/item/FloppyItem.scala b/src/main/scala/ocelot/desktop/inventory/item/FloppyItem.scala
index 40e9ab2..c6c0491 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/FloppyItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/FloppyItem.scala
@@ -73,13 +73,11 @@ object FloppyItem {
     override def tier: Option[Tier] = None
 
     override def icon: IconDef = Icons.FloppyDisk(color)
+
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new FloppyItem(_)))
   }
 
-  object Factory extends ItemRecoverer[Floppy] {
-    override type I = FloppyItem
-
-    override def recover(source: Floppy): FloppyItem = new FloppyItem(source)
-
+  object Factory {
     class Loot(factory: FloppyFactory) extends Factory(Some(factory.name), factory.color, managed = true) {
       override def name: String = factory.name
 
diff --git a/src/main/scala/ocelot/desktop/inventory/item/GraphicsCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/GraphicsCardItem.scala
index 78d9754..3b5e227 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/GraphicsCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/GraphicsCardItem.scala
@@ -24,11 +24,7 @@ object GraphicsCardItem {
     override val icon: IconDef = Icons.GraphicsCard(_tier)
 
     override def build(): GraphicsCardItem = new GraphicsCardItem(new GraphicsCard(_tier))
-  }
 
-  object Factory extends ItemRecoverer[GraphicsCard] {
-    override type I = GraphicsCardItem
-
-    override def recover(source: GraphicsCard): GraphicsCardItem = new GraphicsCardItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new GraphicsCardItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/HddItem.scala b/src/main/scala/ocelot/desktop/inventory/item/HddItem.scala
index 39b9c67..9200a11 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/HddItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/HddItem.scala
@@ -74,19 +74,10 @@ object HddItem {
       if (managed) Hdd.Managed(new HDDManaged(_tier))
       else Hdd.Unmanaged(new HDDUnmanaged(_tier)),
     )
-  }
 
-  object Factory {
-    object ManagedRecoverer extends ItemRecoverer[HDDManaged] {
-      override type I = HddItem
-
-      override def recover(source: HDDManaged): HddItem = new HddItem(Hdd.Managed(source))
-    }
-
-    object UnmangedRecoverer extends ItemRecoverer[HDDUnmanaged] {
-      override type I = HddItem
-
-      override def recover(source: HDDUnmanaged): HddItem = new HddItem(Hdd.Unmanaged(source))
-    }
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Seq(
+      ItemRecoverer((hdd: HDDManaged) => new HddItem(Hdd.Managed(hdd))),
+      ItemRecoverer((hdd: HDDUnmanaged) => new HddItem(Hdd.Unmanaged(hdd))),
+    )
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/InternetCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/InternetCardItem.scala
index 36e6252..572a884 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/InternetCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/InternetCardItem.scala
@@ -15,7 +15,7 @@ class InternetCardItem(val card: InternetCard) extends Item with ComponentItem w
 }
 
 object InternetCardItem {
-  object Factory extends ItemFactory with ItemRecoverer[InternetCard] {
+  object Factory extends ItemFactory {
     override type I = InternetCardItem
 
     override def itemClass: Class[InternetCardItem] = classOf
@@ -28,6 +28,6 @@ object InternetCardItem {
 
     override def build(): InternetCardItem = new InternetCardItem(new InternetCard)
 
-    override def recover(source: InternetCard): InternetCardItem = new InternetCardItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new InternetCardItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/LinkedCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/LinkedCardItem.scala
index 1062174..fed059d 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/LinkedCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/LinkedCardItem.scala
@@ -40,7 +40,7 @@ class LinkedCardItem(val linkedCard: LinkedCard) extends Item with ComponentItem
 }
 
 object LinkedCardItem {
-  object Factory extends ItemFactory with ItemRecoverer[LinkedCard] {
+  object Factory extends ItemFactory {
     override type I = LinkedCardItem
 
     override val itemClass: Class[I] = classOf
@@ -53,6 +53,6 @@ object LinkedCardItem {
 
     override def build(): LinkedCardItem = new LinkedCardItem(new LinkedCard)
 
-    override def recover(source: LinkedCard): LinkedCardItem = new LinkedCardItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new LinkedCardItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/MemoryItem.scala b/src/main/scala/ocelot/desktop/inventory/item/MemoryItem.scala
index d8fc3e8..d7f0f76 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/MemoryItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/MemoryItem.scala
@@ -27,11 +27,7 @@ object MemoryItem {
     override def icon: IconDef = Icons.Memory(memoryTier)
 
     override def build(): MemoryItem = new MemoryItem(new Memory(memoryTier))
-  }
 
-  object Factory extends ItemRecoverer[Memory] {
-    override type I = MemoryItem
-
-    override def recover(source: Memory): MemoryItem = new MemoryItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new MemoryItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/NetworkCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/NetworkCardItem.scala
index 3da5e4a..cb686f9 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/NetworkCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/NetworkCardItem.scala
@@ -15,7 +15,7 @@ class NetworkCardItem(val networkCard: NetworkCard) extends Item with ComponentI
 }
 
 object NetworkCardItem {
-  object Factory extends ItemFactory with ItemRecoverer[NetworkCard] {
+  object Factory extends ItemFactory {
     override type I = NetworkCardItem
 
     override val itemClass: Class[I] = classOf
@@ -26,6 +26,6 @@ object NetworkCardItem {
 
     override def build(): NetworkCardItem = new NetworkCardItem(new NetworkCard)
 
-    override def recover(source: NetworkCard): NetworkCardItem = new NetworkCardItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new NetworkCardItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/RedstoneCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/RedstoneCardItem.scala
index 908c44b..7a0cdb0 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/RedstoneCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/RedstoneCardItem.scala
@@ -21,7 +21,7 @@ object RedstoneCardItem {
   }
 
   class Tier1(val redstoneCard: Redstone.Tier1) extends RedstoneCardItem {
-    protected val redstoneIoWindow: WindowProvider = new WindowProvider {
+    private val redstoneIoWindow: WindowProvider = new WindowProvider {
       override val windowEntryLabel: String = "Redstone I/O"
 
       override def makeWindow(): Window = new Redstone1Window(redstoneCard)
@@ -42,7 +42,7 @@ object RedstoneCardItem {
   }
 
   object Tier1 {
-    object Factory extends Factory with ItemRecoverer[Redstone.Tier1] {
+    object Factory extends Factory {
       override type I = RedstoneCardItem.Tier1
 
       override val itemClass: Class[I] = classOf
@@ -51,7 +51,7 @@ object RedstoneCardItem {
 
       override def build(): RedstoneCardItem.Tier1 = new RedstoneCardItem.Tier1(new Redstone.Tier1)
 
-      override def recover(source: Redstone.Tier1): RedstoneCardItem.Tier1 = new RedstoneCardItem.Tier1(source)
+      override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new RedstoneCardItem.Tier1(_)))
     }
   }
 
@@ -73,7 +73,7 @@ object RedstoneCardItem {
   }
 
   object Tier2 {
-    object Factory extends Factory with ItemRecoverer[Redstone.Tier2] {
+    object Factory extends Factory {
       override type I = RedstoneCardItem.Tier2
 
       override val itemClass: Class[I] = classOf
@@ -82,7 +82,7 @@ object RedstoneCardItem {
 
       override def build(): RedstoneCardItem.Tier2 = new RedstoneCardItem.Tier2(new Redstone.Tier2)
 
-      override def recover(source: Redstone.Tier2): RedstoneCardItem.Tier2 = new RedstoneCardItem.Tier2(source)
+      override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new RedstoneCardItem.Tier2(_)))
     }
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/SelfDestructingCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/SelfDestructingCardItem.scala
index 0c5d75c..f6a3a8b 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/SelfDestructingCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/SelfDestructingCardItem.scala
@@ -20,7 +20,7 @@ class SelfDestructingCardItem(val card: SelfDestructingCard)
 }
 
 object SelfDestructingCardItem {
-  object Factory extends ItemFactory with ItemRecoverer[SelfDestructingCard] {
+  object Factory extends ItemFactory {
     override type I = SelfDestructingCardItem
 
     override val itemClass: Class[I] = classOf
@@ -33,6 +33,6 @@ object SelfDestructingCardItem {
 
     override def build(): SelfDestructingCardItem = new SelfDestructingCardItem(new SelfDestructingCard)
 
-    override def recover(source: SelfDestructingCard): SelfDestructingCardItem = new SelfDestructingCardItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new SelfDestructingCardItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/SoundCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/SoundCardItem.scala
index 7aba166..1fdf2ec 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/SoundCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/SoundCardItem.scala
@@ -29,7 +29,7 @@ class SoundCardItem(val soundCard: SoundCard) extends Item with ComponentItem wi
 }
 
 object SoundCardItem {
-  object Factory extends ItemFactory with ItemRecoverer[SoundCard] {
+  object Factory extends ItemFactory {
     override type I = SoundCardItem
 
     override val itemClass: Class[I] = classOf
@@ -42,6 +42,6 @@ object SoundCardItem {
 
     override def build(): SoundCardItem = new SoundCardItem(new SoundCard)
 
-    override def recover(source: SoundCard): SoundCardItem = new SoundCardItem(source)
+    override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new SoundCardItem(_)))
   }
 }
diff --git a/src/main/scala/ocelot/desktop/inventory/item/WirelessNetworkCardItem.scala b/src/main/scala/ocelot/desktop/inventory/item/WirelessNetworkCardItem.scala
index c9fa0d0..7afde5c 100644
--- a/src/main/scala/ocelot/desktop/inventory/item/WirelessNetworkCardItem.scala
+++ b/src/main/scala/ocelot/desktop/inventory/item/WirelessNetworkCardItem.scala
@@ -29,7 +29,7 @@ object WirelessNetworkCardItem {
   }
 
   object Tier1 {
-    object Factory extends Factory with ItemRecoverer[WirelessNetworkCard.Tier1] {
+    object Factory extends Factory {
       override type I = WirelessNetworkCardItem.Tier1
 
       override val itemClass: Class[I] = classOf
@@ -39,8 +39,7 @@ object WirelessNetworkCardItem {
       override def build(): WirelessNetworkCardItem.Tier1 =
         new WirelessNetworkCardItem.Tier1(new WirelessNetworkCard.Tier1)
 
-      override def recover(source: WirelessNetworkCard.Tier1): WirelessNetworkCardItem.Tier1 =
-        new WirelessNetworkCardItem.Tier1(source)
+      override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new WirelessNetworkCardItem.Tier1(_)))
     }
   }
 
@@ -49,7 +48,7 @@ object WirelessNetworkCardItem {
   }
 
   object Tier2 {
-    object Factory extends Factory with ItemRecoverer[WirelessNetworkCard.Tier2] {
+    object Factory extends Factory {
       override type I = WirelessNetworkCardItem.Tier2
 
       override val itemClass: Class[I] = classOf
@@ -59,8 +58,7 @@ object WirelessNetworkCardItem {
       override def build(): WirelessNetworkCardItem.Tier2 =
         new WirelessNetworkCardItem.Tier2(new WirelessNetworkCard.Tier2)
 
-      override def recover(source: WirelessNetworkCard.Tier2): WirelessNetworkCardItem.Tier2 =
-        new WirelessNetworkCardItem.Tier2(source)
+      override def recoverers: Iterable[ItemRecoverer[_, _]] = Some(ItemRecoverer(new WirelessNetworkCardItem.Tier2(_)))
     }
   }
 }
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala
index d64dd9d..81ca0bb 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/ItemChooser.scala
@@ -1,145 +1,63 @@
 package ocelot.desktop.ui.widget.slot
 
-import ocelot.desktop.inventory.item._
-import ocelot.desktop.inventory.{Item, ItemFactory}
+import ocelot.desktop.graphics.IconDef
+import ocelot.desktop.inventory.Items.{ArbitraryItemGroup, ExtendedTieredItemGroup, SingletonItemGroup, TieredItemGroup}
+import ocelot.desktop.inventory._
 import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry, ContextMenuSubmenu}
-import totoro.ocelot.brain.loot.Loot
 import totoro.ocelot.brain.util.ExtendedTier.ExtendedTier
-import totoro.ocelot.brain.util.{ExtendedTier, Tier}
 import totoro.ocelot.brain.util.Tier.Tier
 
-import scala.collection.mutable.ArrayBuffer
-
 class ItemChooser[I <: Item](slot: SlotWidget[I]) extends ContextMenu {
-  for (entryFactory <- ItemChooser.Factories; entry <- entryFactory.make(slot)) {
-    addEntry(entry)
+  import ItemChooser._
+
+  private def makeMenuEntry(factory: ItemFactory, label: String): ContextMenuEntry = {
+    ContextMenuEntry(label, icon = Some(factory.icon)) {
+      slot.item = factory.build().asInstanceOf[I]
+    }
+  }
+
+  private def addSubmenu[T: HasLabel](
+    name: String,
+    factories: Seq[(T, ItemFactory)],
+    icon: Option[IconDef] = None
+  ): Unit = {
+    val tierLabel = implicitly[HasLabel[T]].label _
+
+    val acceptedFactories = factories.iterator.filter(p => slot.isItemAccepted(p._2)).toSeq
+
+    if (acceptedFactories.nonEmpty) {
+      addEntry(
+        new ContextMenuSubmenu(name, icon = Some(icon.getOrElse(acceptedFactories.last._2.icon))) {
+          for ((tier, factory) <- acceptedFactories) {
+            addEntry(makeMenuEntry(factory, tierLabel(tier)))
+          }
+        }
+      )
+    }
+  }
+
+  for (group <- Items.groups) {
+    group match {
+      case SingletonItemGroup(name, factory) =>
+        if (slot.isItemAccepted(factory)) {
+          addEntry(makeMenuEntry(factory, name))
+        }
+
+      case TieredItemGroup(name, factories) => addSubmenu(name, factories)
+
+      case ExtendedTieredItemGroup(name, factories) => addSubmenu(name, factories)
+
+      case ArbitraryItemGroup(name, icon, factories) => addSubmenu(name, factories, Some(icon))
+    }
   }
 }
 
 object ItemChooser {
-  private trait EntryFactory {
-    def make[I <: Item](slot: SlotWidget[I]): Option[ContextMenuEntry]
+  private trait HasLabel[A] {
+    def label(value: A): String
   }
 
-  private def makeMenuEntry[I <: Item](slot: SlotWidget[I], factory: ItemFactory, label: String): ContextMenuEntry =
-    ContextMenuEntry(label, icon = Some(factory.icon)) {
-      slot.item = factory.build().asInstanceOf[I]
-    }
-
-  private case class SingletonEntryFactory(factory: ItemFactory) extends EntryFactory {
-    override def make[I <: Item](slot: SlotWidget[I]): Option[ContextMenuEntry] = {
-      Option.when(slot.isItemAccepted(factory)) {
-        makeMenuEntry(slot, factory, factory.name)
-      }
-    }
-  }
-
-  private case class TieredEntryFactory[T: TierLike](
-    name: String,
-    tiers: Iterable[T],
-  )(
-    factoryMaker: T => ItemFactory,
-  ) extends EntryFactory {
-
-    override def make[I <: Item](slot: SlotWidget[I]): Option[ContextMenuEntry] = {
-      val tierLabel = implicitly[TierLike[T]].label _
-
-      val factories = tiers
-        .map(tier => (tier, factoryMaker(tier)))
-        .filter(p => slot.isItemAccepted(p._2))
-        .toArray
-
-      Option.unless(factories.isEmpty) {
-        new ContextMenuSubmenu(name, icon = Some(factories.last._2.icon)) {
-          for ((tier, factory) <- factories) {
-            addEntry(makeMenuEntry(slot, factory, tierLabel(tier)))
-          }
-        }
-      }
-    }
-  }
-
-  private trait TierLike[A] {
-    def label(tier: A): String
-  }
-
-  private implicit val TierIsTierLike: TierLike[Tier] = _.label
-  private implicit val ExtendedTierIsTierLike: TierLike[ExtendedTier] = _.label
-
-  private object FloppyEntryFactory extends EntryFactory {
-    override def make[I <: Item](slot: SlotWidget[I]): Option[ContextMenuEntry] = {
-      Option.when(slot.isItemAccepted(FloppyItem.Factory.Empty)) {
-        new ContextMenuSubmenu("Floppy", icon = Some(FloppyItem.Factory.Empty.icon)) {
-          def addEntry(factory: FloppyItem.Factory, label: String): Unit = {
-            addEntry(makeMenuEntry(slot, factory, label))
-          }
-
-          def addEntry(factory: FloppyItem.Factory): Unit = {
-            addEntry(factory, factory.name)
-          }
-
-          for (lootFactory <- Loot.Floppies) {
-            addEntry(new FloppyItem.Factory.Loot(lootFactory))
-          }
-
-          addEntry(FloppyItem.Factory.Empty, "Empty")
-        }
-      }
-    }
-  }
-
-  private object EepromEntryFactory extends EntryFactory {
-    override def make[I <: Item](slot: SlotWidget[I]): Option[ContextMenuEntry] = {
-      Option.when(slot.isItemAccepted(EepromItem.Factory.Empty)) {
-        new ContextMenuSubmenu("EEPROM", icon = Some(EepromItem.Factory.Empty.icon)) {
-          def addEntry(factory: EepromItem.Factory, label: String): Unit = {
-            addEntry(makeMenuEntry(slot, factory, label))
-          }
-
-          def addEntry(factory: EepromItem.Factory): Unit = {
-            addEntry(factory, factory.name)
-          }
-
-          for (lootFactory <- Loot.Eeproms) {
-            addEntry(new EepromItem.Factory.Loot(lootFactory))
-          }
-
-          addEntry(EepromItem.Factory.Empty, "Empty")
-        }
-      }
-    }
-  }
-
-  // Entry factories //
-  private val Factories = ArrayBuffer.empty[EntryFactory]
-
-  Factories += TieredEntryFactory("CPU", Tier.One to Tier.Three)(new CpuItem.Factory(_))
-  Factories += TieredEntryFactory("APU", Tier.One to Tier.Three)(new ApuItem.Factory(_))(_.saturatingAdd(1).label)
-
-  Factories += TieredEntryFactory("Memory", ExtendedTier.One to ExtendedTier.ThreeHalf)(new MemoryItem.Factory(_))
-
-  // TODO: unmanaged
-  Factories += TieredEntryFactory("HDD", Tier.One to Tier.Three)(new HddItem.Factory(managed = true, _))
-  Factories += FloppyEntryFactory
-  Factories += EepromEntryFactory
-
-  Factories += TieredEntryFactory("Graphics Card", Tier.One to Tier.Three)(new GraphicsCardItem.Factory(_))
-  Factories += SingletonEntryFactory(NetworkCardItem.Factory)
-  Factories += TieredEntryFactory("Wireless Net. Card", Tier.One to Tier.Two) {
-    case Tier.One => WirelessNetworkCardItem.Tier1.Factory
-    case Tier.Two => WirelessNetworkCardItem.Tier2.Factory
-  }
-  Factories += SingletonEntryFactory(LinkedCardItem.Factory)
-  Factories += SingletonEntryFactory(InternetCardItem.Factory)
-  Factories += TieredEntryFactory("Redstone Card", Tier.One to Tier.Two) {
-    case Tier.One => RedstoneCardItem.Tier1.Factory
-    case Tier.Two => RedstoneCardItem.Tier2.Factory
-  }
-  Factories += TieredEntryFactory("Data Card", Tier.One to Tier.Three) {
-    case Tier.One => DataCardItem.Tier1.Factory
-    case Tier.Two => DataCardItem.Tier2.Factory
-    case Tier.Three => DataCardItem.Tier3.Factory
-  }
-  Factories += SingletonEntryFactory(SoundCardItem.Factory)
-  Factories += SingletonEntryFactory(SelfDestructingCardItem.Factory)
+  private implicit val TierHasLabel: HasLabel[Tier] = _.label
+  private implicit val ExtendedTierHasLabel: HasLabel[ExtendedTier] = _.label
+  private implicit val StringHasLabel: HasLabel[String] = identity
 }