Steam
-90%Secret Files: Tunguska
$0.99
$9.99
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.
Tracked stores
1
Best indexed price
$0.99
Review signal
No reviews

Current low target
$0.99 · matches the current indexed low
Best indexed price: $0.99 at Steam.
Secret Files: Tunguska
$0.99
$9.99
All-time low
$0.99
Jun 19, 2026 · Steam
12-week avg
$0.99
1 recent observations
Current vs low
At low
Current $0.99
Recommendation
At indexed low
current indexed price matches the low
Lowest indexed daily price per currency. KeyDwarf tracks listings and does not sell keys.
Secret Files: Tunguska is currently indexed at $0.99 from Steam. Official Steam Store listing.
The indexed low for Secret Files: Tunguska is $0.99 from Steam, observed Jun 19, 2026. The current indexed price is at that low, so KeyDwarf labels it "At indexed low".
Steam is labeled "Official store" in the index. KeyDwarf tracks the listing and source risk, but checkout and support stay with the external store.
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