Keeps are the center of advanced military communities. They are often protected by strong walls, and several races besides those of the Alliance are known to build them.
- Main article: Keep (Warcraft II)
In large and well-defended settlements, the keep replaced the town hall as the center of commerce where peasants could deliver shipments of gold and lumber for processing. The artisans who dwelled here had mastered means of better extracting the gold from the ore mined by the peasants, thus increasing the yield of mining operations. The keep was also a military structure protected by high granite walls, making it difficult to destroy. Advancing legions of orcish warriors forced the Alliance to assign their elite troops - the knights of Lordaeron and the mysterious elven rangers - only to such places, where their presence could serve to deny the Horde further strategic gains. As control of these towns became more critical, the keep could be needed to be upgraded into a castle.
- Main article: Keep (Warcraft III)
With the advancement of human technology and the need to support growing numbers of fighting troops, the town hall may be upgraded to a keep. In addition to adding heavier fortification, the keep allows for the introduction of the mage class into human society. The keep can later be upgraded even further, to a castle.
High elven and blood elven keep
The Keep helped the high elves to fend off Arthas and the Scourge as he tried to attack their capital of Silvermoon City and Quel'Thalas in Warcraft III: Reign of Chaos by serving as a returning point for gold and training units. However, the Keep couldn't be built by the high elf worker unit likely due to the limited ability of the map editor prior to the Warcraft III: The Frozen Throne expansion. With the addition of The Frozen Throne expansion's map editor, it is possible to make additional groups with building orders.
In the RPG
World of Warcraft
This section concerns content related to the original World of Warcraft.
Keeps can be found as the center, or at least military center, of many human towns. Keep can also refer to both the building and the town within its walls.
For some reason, the human keep design used in Warcraft III was combined with the Alliance barracks design of the same game to create the type used in World of Warcraft. This means that the human barracks found in World of Warcraft are very similar to keeps, to the point that barracks and keeps are often interchangeable in dialogs.
Buildings that are distinctly ruined keeps have a clock tower like they did in Warcraft III, but there is no intact keep model. As an example, Menethil Keep previously had a barracks model when it was intact, but now that it has been partially destroyed it uses a keep model with a clock tower.
This continued with the new style of buildings used by the Alliance in Northrend, where keeps are similar but again distinct from the barracks due to their tower. Sadly this does not stop the confusion, as Recruitment Officer Blythe calls the presumed keep part of Valiance Keep a barracks in .
- Mardenholde Keep - Western Plaguelands
- Caer Darrow - Western Plaguelands
- Fenris Keep - Silverpine Forest
- Shadowfang Keep - Silverpine Forest (unique design)
- Ruins of Alterac - Alterac Mountains (unnamed keep)
- Durnholde Keep - Hillsbrad Foothills
- Stromgarde Keep - Arathi Highlands
- Menethil Keep - Wetlands
- Tiragarde Keep - Durotar
- Stormwind Keep - Stormwind City (could be considered as a castle instead)
- Stonewatch Keep - Redridge Mountains
- Nethergarde Keep - Blasted Lands
- Honor Hold - Hellfire Peninsula (unnamed keep)
- Westguard Keep - Howling Fjord
- Valiance Keep - Borean Tundra
- Wintergarde Keep - Dragonblight
- Alliance Keep - Isle of Conquest
- Justice Keep - Icecrown (despite being named as such, has no keep building)
- Highbank - Twilight Highlands (unnamed keep)
- Farson Hold - Tol Barad
- Lion's Landing - Krasarang Wilds (unnamed keep)
- Stormshield Keep - Ashran
See also the Dwarven Bunkers, which were inspired by the design of dwarven keeps.
- Dun Baldar - Alterac Valley (unnamed keep)
- Stonehearth Outpost - Alterac Valley
- Wildhammer Keep - Hinterlands
- Dun Garok - Hillsbrad Foothills
- Angor Fortress - Badlands
- Bael'dun Keep - Barrens
- Wildhammer Stronghold - Shadowmoon Valley (unnamed keep)
- Kargathia Keep - Ashenvale
- Frostwolf Keep - Alterac Valley
- Horde Keep - Isle of Conquest
- Domination Keep - Krasarang Wilds
- Warspear Keep - Ashran
- Tempest Keep - Netherstorm
- Utgarde Keep - Howling Fjord
- Drak'Tharon Keep - Grizzly Hills
- Kul'galar Keep - Icecrown
- Sulfuron Keep - Firelands
- Twinspire Keep - Jade Forest
- Keeps also appear in Heroes of the Storm. Destroying one of them will make catapults now spawn on the field.