Doors

Doors can be used as defense, for controlling creature movement, or for improving room efficiency. They block all non-friendly units from passing trough, and are mostly used to halt enemies or lock creatures in a specific region of a dungeon. They can be locked and unlocked by the Keeper that owns the door. 
When a door is open because a creature is near it, enemy creatures can sneak in. You can use this to your advantage against a Keeper that has a lot of doors but keeps them unlocked. 
A Ghost has a special ability that allows it to pass trough any door, even if it is locked.
==Dungeon Keeper==
There are four types of door in Dungeon Keeper:
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===Gallery===
File:Cross.png|Prototype icon for selling stuff.
Early door icon 3 Dungeon Keeper.png|Presumably an early icon for a door.
Early door icon 2 Dungeon Keeper.png|Presumably an early icon for a door.
Early door icon Dungeon Keeper.png|Presumably an early icon for a door.
Early door icon 6 Dungeon Keeper.png|Seemingly an early door icon.
Early door icon 5 Dungeon Keeper.png|Seemingly an early door icon.
Early door icon 4 Dungeon Keeper.png|Seemingly an early door icon.
==Dungeon Keeper 2==
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==Dungeon Keeper Online==
Dungeon Keeper Online has only two door types: Wooden and Iron. Updated versions of their Dungeon Keeper 2 icons are used to represent them.
==References==