Warner Bros. Games and Turtle Rock Studios have revealed the launch trailer for Back 4 Blood – Expansion 1: Tunnels of Terror showing off the all-new action coming to the first-person co-op zombie shooter as part of the game’s first major downloadable content (DLC), set to release on April 13.

The trailer introduces two new playable Cleaners debuting in this expansion – Sharice, an axe-wielding firefighter known for her defensive prowess, and Heng, a tough as nails, no-nonsense restaurateur skilled at slaying Ridden with his knife. The video provides a detailed look at the new Ridden Hives PvE cooperative activity, where teams of up to four players can explore the cavernous depths of seven Ridden infested areas full of labyrinthine tunnels below Evansburgh. To earn rewards, players must outmanoeuvre the new Warped Ridden, including the landmine-setting Urchins, horrifying Shredders, and damage-dealing Rippers. These Ridden variations are also playable in PvP Swarm mode and can be earned, along with the new Cleaners, for use in PvP matches.

Additionally, the Tunnels of Terror expansion will include seven new legendary weapons, eight exclusive character skins, 12 new weapon skins, new cards, and more. The expansion will also coincide with the release of the No Hope difficulty, a free update for all Back 4 Blood owners adding an extra level of challenge for elite players. Please note, all playable content included in the expansion will be accessible by all players in a party as long as one player in that party has purchased the expansion.

Back 4 Blood is a first-person co-op zombie shooter from critically acclaimed developer, Turtle Rock Studios, available now for Xbox Series X|S, Xbox One consoles, PlayStation 5, PlayStation 4 and PC. Back 4 Blood – Expansion 1: Tunnels of Terror will be available on April 13 as part of the Back 4 Blood: Ultimate Edition, Back 4 Blood: Deluxe Edition, Back 4 Blood Annual Pass, or via standalone purchase. The Back 4 Blood story takes place after a catastrophic outbreak where most of humanity has either been killed or infected by the parasitic Devil Worm. Hardened by unspeakable events and emboldened to fight for the last of humanity, a group of apocalypse veterans called the Cleaners have rallied to take on the infected horrors known as the Ridden and reclaim the world.

To learn more about Back 4 Blood, visit Back4Blood.com.