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Cannon Keep

Demo available

BrainflickDiscovered Oct 18, 2026

About the game

Build your city block by block and defeat waves of mechs in this tower defense roguelike! Combine powerful cannons with unique effects to survive the unforgiving wasteland and explore the underground to gather resources and find powerful relics.

Original Steam description

BUILD

Backpack battles meets tower defense! Place and merge buildings onto the grid to grow your defenses. Expand your city\'s borders to increase your damage and scavenge the underground for resources.

DEFEND

Watch your defenses cut down waves of enemies and turn the tides of combat with the commander\'s powerful ability. Combine turrets with various effects to maximize your city\'s defensive capabilities.

PERSIST

Find your way to play by combining different buildings into your own unique strategy. Face growing hordes of enemies and take down their boss to claim a piece of the wasteland for yourself.

Demo and release information

A Steam demo was found at the latest check. Confirm it is still available in your region on Steam before downloading.

Steam demo, playtest and Early Access: what is the difference?

Information & artwork: Steam · Last checked UTC