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Build Beneath The Stone

Carve a kingdom from a cavern generated just for you. Make every passage count, choose how you’ll defend it, and lead your army into rival caverns.

Explore The Game

Underground Strategy

Every Cavern Plays Differently

Delvers open a rocky passage toward a turquoise underground lake.

Excavate

A Cavern Of Your Own

Every player starts with randomly generated terrain. Work around lakes and hard rock, then send your Delvers to carve the rooms and routes that fit your cavern.

Lit passages lead from the Dominion Crystal to a mine and a lakeside Deepgate.

Connect

Make Every Tunnel Count

Your Dominion Crystal anchors your kingdom. Dig connected routes to bring rooms and mines online, and build a Deepgate on a connected shore to draw Aether from the lake.

A Guard Tower fires at a dragon as imps crowd a narrow passage below.

Defend

Choose What Guards Your Crown

Your defenses share a limited Defensive Capacity. Spend it on the mix that suits your layout. Cover the skies with Guard Towers, punish clustered attackers with Shatter Mortars, or lure ground troops into traps. Store and swap defenses as your cavern changes.