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Citadel Zero
PYRHAMID · 17 Jul 2026
Price
Free to Play
Citadel Zero is free to play at Steam.
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.
Compare Prices
| Store | Price | Link |
|---|---|---|
| SteamBestSteam | Free to Play | Play → |
Last updated: 6 Oct 2026
FAQ
Where can I buy Citadel Zero cheapest?
Citadel Zero is free to play at Steam.
Is Citadel Zero on sale right now?
Citadel Zero is free to play, so there is no price to discount.
Look it up elsewhere
- ProtonDB — Steam Deck & Linux
- PCGamingWiki — fixes & settings
- SteamDB — price & patch history
