[PC] Steam - Free - Dying Light: L4D2 Bill & Gnome Chompski Pack (DLC) - Steam

Another L4D 2 crossover event for this year's Halloween.
You need the base game in order to add this to your account.

From the website:

Bill and Chompski from Left 4 Dead 2 now in Dying Light.

Meet Bill and gnome Chompski. You already know them? That’s great because now they’re coming to Dying Light as a new playable model and a two-handed weapon. Download the new DLC to enjoy these iconic Left 4 Dead characters in Harran, and have the best of both worlds.

Enjoy!