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Citadel Zero

Defend the last citadel on a dying alien world. Summon a gacha collection of bio-engineered defense towers, forge a custom loadout, and conquer three modes, story-driven Chronicle, roguelite Contracts, and 1v1 PvP Ascension. Tower defense meets deck-building meta-progression.

Steam Page
Developer
PYRHAMID Studio
Publisher
PYRHAMID
Release
July 17, 2026
16 days ago
Steam Reviews
Positive12 reviews83.3%

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About the Game

DEFEND THE LAST CITADEL

The last human citadel stands alone on a dying alien world, watched from the ruins by mutated sentinels. You command its defense. Summon an arsenal of bio-engineered towers, forge a custom loadout, and hold the line across three distinct game modes.

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