Citadel Zero Uses AI

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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.

Developer: PYRHAMID Studio
Publisher: PYRHAMID
Released: 17 Jul 2026
Price: Free to play
Platforms
Languages: English +6

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Positive Now

69%

23 reviews on Steam

30-Day Trend

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Not enough history yet (since 21 Oct 2026)

Last 12 Months

70%

positive, 23 reviews

Reviews Last Month

August 2026, −50% on the 1-month average

Reviews And Players By Month

Updates News Read reviews on Steam

Reviews from Steam’s own monthly review graph; players are each month’s average, from our polls and, for earlier months, the archive. How we count

Show the numbers

Steam reviews and average players of Citadel Zero by month, newest first
Month	Positive	Negative	Average players
October 2026	1	1	0
August 2026	4	3	—
July 2026	11	3	—

Review Score

Steady at 69% positive since 21 Oct 202623 reviews when we first checked

Steam’s review score each time our store check saw it change, since 21 Oct 2026. How we count

Notable Months

Notable months for Steam reviews of Citadel Zero
Notable	Month	Reviews	Positive
Busiest month	July 2026	14	79%

Best and worst counts months with at least 50 reviews.

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