PC (Microsoft Windows)July 17, 2026
Released ✓ 
RELEASES · DEALS · SUBSCRIPTIONS
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.
Science fictionIndieStrategy
Game modes
MultiplayerSingle player
Player perspectives
Bird view / Isometric