Dungeon Keeper is a free-to-play game, but some items and in-game currency can be purchased with real money.

The game is based on the strategy game series Dungeon Keeper, where players dominate underground lairs to defend their dungeons against attacks. The game is a combination of tower defense and dungeon defense.

The goal of the game is to dominate the enemy dungeons and earn as much treasure as possible. To achieve this, players must build an underground lair with a variety of traps, weapons, and magic items. They can also recruit a variety of minions, such as trolls, demons, and warlocks.

Players can summon their minions to fight the enemies and help them in combat. They can also use items to increase their damage or to help their minions. Items can also be purchased with gold in the shop.

The game has a storyline where players must defend their dungeons against enemies. They can also explore dungeons to find treasure and fight against other players.

Players can also form a guild and work together to increase their power and win a number of achievements.