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.

With the launch of Tunnels of Terror, players can explore Ridden Hives. These labyrinthine tunnels promise incredible goods to those that brave its depths, but be warned–Ridden infest these passageways and there are new mutated strains that will hunt you down.

Expansion 1 includes:
All-New Ridden Hives PvE Activity
2 New Playable Cleaners
3 New Warped Ridden
8 Exclusive Character Skins
12 Exclusive Weapon Skins
15+ New Cards
+ More

MATURE CONTENT DESCRIPTION

The developers describe the content like this:

This Game may contain content not appropriate for all ages, or may not be appropriate for viewing at work: Frequent Violence or Gore, General Mature Content