Steam
BestOfficialIn stockCitadel Zero · Region US · 23h ago
Free
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.
OfficialFreeJul 17, 2026 · PYRHAMID StudioFree To PlayIndieStrategyFamily SharingIn-App PurchasesWindows
Current best
Free
at Steam · 23h ago
All-time low
Not yet
No USD history
Stores tracked
1
sources indexed
Review signal
100%
8 reviews
Current best · Steam
Free
Observed 23h ago
View best listingKeyDwarf only tracks observations — checkout happens on the store.
Tracked Stores
Best indexed price $0.00 at Steam.
1/1
View listing
How trust is scored: KeyDwarf combines source type, known retailer posture, marketplace risk, activation-region warnings, and source transparency. Checkout and support still happen with the external seller.
Price History
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Media
12 indexedCommon Questions
Where is Citadel Zero cheapest right now?
Citadel Zero is currently indexed at Free from Steam. Publisher, direct storefront, or authorized retail source. Check the linked store's current terms before acting.
What is the historical low for Citadel Zero?
KeyDwarf has not indexed enough USD history for Citadel Zero yet.
Is the top source safe?
Steam is labeled "Official store" in the index. KeyDwarf tracks the listing and source risk, but checkout and support stay with the external store.
What is the review signal?
Citadel Zero has a best indexed review signal of 100%.
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