https://www.gog.com/en/game/dungeon_keeper
https://www.gog.com/en/game/dungeon_keeper_2
https://www.gog.com/en/game/keeperfx
https://www.gog.com/en/game/legend_of_keepers_career_of_a_dungeon_master
https://www.gog.com/en/game/war_for_the_overworld
Those are similar, but this game is unique.
