
Unravel one of the greatest mysteries of our time! On the 30th June 1908 an explosion with the combined energy of 2000 Hiroshima bombs rocked the region of Tunguska in Central Siberia and felled over 6,000 square km of trees. The explosion could be heard from as far as 1,000km away.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked 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: CA$1.39 (Jul 7, 2026) · current best: CA$2.01 across 5 stores.
85% positive reviews all-time · 7 peak players in the last 30 days.
Right now the cheapest offer for Secret Files: Tunguska is CA$2.01 at Gamivo. KingsPrice compares 5 offers from 5 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Secret Files: Tunguska is CA$1.39 (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.
Secret Files: Tunguska peaked at 7 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 Secret Files: Tunguska 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.