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Tunnels of Terror features the all-new PvE areas “Ridden Hives”, along with 2 new playable Cleaners, new Legendary Weapons, 12 weapon skins, new cards, 8 premium skins, and the fearsome Warped Ridden to discover below the depths of Evansburgh.
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 →
This is the base game required to play this DLC. Other expansions may also be required.
Right now the cheapest offer for Back 4 Blood - Expansion 1: Tunnels of Terror is CA$4.77 at K4G. KingsPrice compares 3 offers from 3 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Back 4 Blood - Expansion 1: Tunnels of Terror is CA$3.99 (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.
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 Back 4 Blood - Expansion 1: Tunnels of Terror 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, French, Italian, German, Spanish - Spain, Portuguese - Brazil, Spanish - Latin America
Text only: Arabic, Japanese, Korean, Polish, Russian, Simplified Chinese, Traditional Chinese, Turkish
