While Dungeon Keeper 3 was never officially released (cancelled in 1999), a highly requested fan feature for its gameplay would be:
Instead of being confined to a single underground dungeon, you would build multiple dungeons across a strategic overworld map. Each dungeon acts as a fortress, but you must also send armies above ground to raid rival Keepers’ surface castles, capture resources (like lumber or mana crystals from sacred groves), and establish watchtowers. The twist: while you’re attacking the surface, your own dungeon becomes vulnerable to counter-invasions—forcing real-time split attention between micromanaging the underworld and commanding tactical surface battles. dungeon keeper 3 gameplay
This would blend the classic “dig, trap, and torture” loop with large-scale war campaigns, fulfilling the series’ promise of finally becoming the ultimate evil overlord across the entire realm. While Dungeon Keeper 3 was never officially released