The Guard Post is a room type in Dungeon Keeper.
"If you place creatures in a guard post, it remains there, on look out duties, unless it needs sleep or food. Creatures with a natural tendency, such as Orcs, will go to empty guard posts automatically and watch for invaders. If hit by a boulder a guard post is destroyed. Creatures in water cannot climb from water onto a guard post adjacent to water so it can be used as a barricade. Each creature on the guard post takes up one square. The Guard Post doesn't attract any creatures."
Guard posts are useful lookout points. One should place them in areas that need to be defended to alert them if enemies attack. Such areas include areas close to enemy dungeons, Hero Gates, exposed areas such as large patches of earth floor, water or lava, open areas of gold or gems to protect the player's Imps, or important parts of one's dungeon.
Creatures placed on Guard Posts patrol the area of the posts and keep an eye out for enemies, only stopping for food, payday or battle. Orcs and converted Archers naturally enjoy guard duty and flock to these posts whenever their other jobs are unavailable, and Guard Posts can also be used to keep problem creatures such as Horned Reapers, Vampires and Hounds busy. It's a good idea to place a Hatchery close by so hungry watchmen won't leave their posts for too long. Skeletons arguably make the best guards as they do not require nourishment.
Guard Posts can also be (ab)used to wall off exposed areas of water or lava - the height difference between the terrain stops creatures from being able to get past, allowing a Keeper to effectively wall themselves off or trap creatures.
A Guard Post also functions as a Fortified Wall or Door for the purposes of determining an adjacent room's Efficiency. They can be particularly useful for making a Library efficient before any doors are available, improving research speed there, and maximizing Training speed at any time (since trainees seem to bash down doors eventually). However, in later versions of KeeperFX this is no longer the case. Unfortunately, watchmen assigned to advanced positions might wind up holding these dinky posts instead if they are closer to the Hatchery and Treasure Room.
| ||Barracks / Bridge / Dungeon Heart / Graveyard / Guard Post / Hatchery / Lair / Library / Portal / Prison / Scavenger Room / Temple / Torture Chamber / Training Room / Treasure Room / Workshop|
| ||Casino / Combat Pit / Dungeon Heart / Graveyard / Guard Room / Hatchery / Hero Gate / Lair / Library / Mercenary Portal / Portal / Prison / Stone Bridge / Temple / Torture Chamber / Training Room / Treasury / Wooden Bridge / Workshop|
| ||Alchemy Room / Arena / Brick Wall / Casino / Cemetery / Chicken Coop / Dungeon Heart / Furnace Room / Outpost / Lair / Library / Material Warehouse / Creature Portal / Prison / Stone Bridge / Torture Chamber / Training Room / Treasury / Shrine / Wooden Bridge / World Portal / Workshop|
| ||Dragon Chamber / Infirmary / Kitchen / Crypt / Hive / Tomb / Summoning Chamber / Parlour|