Citadel Zero (2026)

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.

• 23 Steam reviews
• 69% positive
• released 2026

Tags

• Roguelite
• Strategy
• Creature Collector
• Tower Defense
• PvE
• PvP
• Roguelike
• 2D
• Isometric
• Deckbuilding
• Pixel Graphics
• Space
• Free to Play
• Indie
• Sci-fi
• Aliens
• Futuristic
• Singleplayer
• Multiplayer

See Citadel Zero on the map of Steam · Steam store page