The Tunnels of Terror expansion in Back 4 Blood introduces several new levels for your team to enter as the campaign progresses. While you’re down in these Ridden Hives, you’ll come across plenty of enemies, some weapon upgrades, and a brand new currency in Skull Totems that can bring you new maps, cosmetics, and more. Here’s where you can spend them.
Related: How to combine skull totems in Back 4 Blood Tunnels of Terror
Once you’ve collected some Skull Totems from playing through various Ridden Hives, you can spend them at the Supply Line table in Fort Hope Base. Either bring up the menu or head over and talk to the lady to open the interface. Skull totems can be used at the option on the right below the skull totem bar.
Unlike normal supply lines, the selection of skull totems refreshes regularly throughout the day, but otherwise they behave the same way. There are cosmetics for your cleaners and weapons, sprays, and the cards you seek. Those appearing here are exclusive to this track. So if you see one you want, grab it before it goes back into rotation.
https://www.gamepur.com/guides/how-to-unlock-skull-totem-cards-in-back-4-blood-tunnels-of-terror How to unlock skull totem cards in Back 4 Blood Tunnels of Terror