The heroes are coming. This time, the dungeon is yours.
Carve a home beneath the mountain and turn it into a working fortress. Your imps dig the tunnels. Your goblins haul the goods and run the workshops. You decide where everything goes — and how to keep the invaders away from the Heart.
BUILD YOUR OWN UNDERWORLD
Mark walls for digging, uncover gold and iron lodes, and turn excavated floor into rooms. Build bunkhouses, fungus farms, breweries, banks, barracks and workshops. Room size and placement matter: leave space to grow and keep your workers' journeys short.
KEEP THE DEFENSES SUPPLIED
A needler needs bolts. Bolts need iron. Iron needs a smelter, ore, and a goblin to carry it. Connect your mines and workshops into a supply network that can keep working when a raid arrives. Empty weapons cannot protect the Heart.
MAKE EVERY TUNNEL COUNT
Place rubble slings, needlers and traps. Fit doors with arrow slits, reinforce them with iron, and brace the walls around your defenses. The passages your workers use are also routes the heroes can take — so every shortcut has a cost.
FACE HEROES WITH DIFFERENT TACTICS
Knights attack head-on. Sappers dig around your defenses. Shieldmen block incoming shots. Thieves sneak past traps to steal your gold. Train goblin guards and adapt your dungeon as new threats arrive.
CHOOSE HOW YOU PLAY
Explore four caves with different terrain, resources and approaches. Survive the waves in Siege mode, face continuing raids in Endless mode, or build in Sandbox and call a raid when you are ready. A guided tutorial teaches digging, room building, hauling and defense.
Build a busy underground home. Then hold the door.
Build your dungeon, supply your defenses, and keep the invading heroes out.