The Bellows Below
Defend the furnace at the heart of a spiral cavern
About this game
The Bellows Below is a tower defense game where you guard a glowing furnace deep in a winding cave against ten waves of crawlers, golems, bats and wurms. Place Bellows, Forge, Vent and Lens towers along the spiral path to slow, burn and amplify, then spend gold and research points on upgrades between waves. Survive every wave or watch the furnace go cold.
How to play
Mouse or touch: select a tower from the sidebar and click a cave cell to place it; keys 1-4 pick towers, Space starts a wave The Bellows Below runs entirely in your browser — no download or sign-up. Press play above, or open it fullscreen for the best experience on phone or desktop.
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The Bellows Below is part of GameDaily.ai — a brand-new AI-generated browser game published every single day since Thursday, February 12, 2026. See how the games are made or browse the full archive of 464 games.