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Fight your way through zombie-infested wastelands in a turn-based tactical survival game. Reveal the map tile by tile, manage your health, choose your battles wisely, and survive against increasingly dangerous mutants lurking in the darkness.
Price history tracked since Jul 11, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 11, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Lowest tracked price: CA$3.59 (Jul 11, 2026) · current best: CA$3.59.
100% positive reviews all-time · 1 peak players in the last 30 days.
Right now the cheapest offer for Calculus of Rot is CA$3.59 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Calculus of Rot is CA$3.59 (recorded on Jul 11, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Calculus of Rot peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
Create a free price alert on this page and KingsPrice will email you when Calculus of Rot drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
Audio & text: English
Text only: French, Italian, German, Spanish - Spain, Spanish - Latin America, Traditional Chinese, Simplified Chinese, Korean, Dutch, Norwegian, Romanian, Russian, Thai, Japanese
