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Theseus Protocol is a deck building roguelike where rebirth offers strategic opportunity. Utilize a powerful suite of cards and weaponry to uncover the cruel truth behind the dystopian sci-fi world of Mark City.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Lowest tracked price: €9.75 (Jul 7, 2026) · current best: €9.75 across 3 stores.
70% positive reviews all-time · 1 peak players in the last 30 days.
Right now the cheapest offer for Theseus Protocol is €9.75 at Steam. KingsPrice compares 3 offers from 3 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Theseus Protocol is €9.75 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Theseus Protocol peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 8, 2026). The player chart on this page updates daily.
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
Create a free price alert on this page and KingsPrice will email you when Theseus Protocol 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: Simplified Chinese, Traditional Chinese, Japanese
Text only: English
