Call of Duty® returns to its roots with Call of Duty®: WWII – a breathtaking experience that redefines World War II for a new gaming generation. Land in Normandy on D-Day and battle across Europe through iconic locations in history’s most monumental war. Experience classic Call of Duty combat, the bonds of camaraderie, and the unforgiving nature of war against a global power throwing the world into tyranny.

Call of Duty®: WWII creates the definitive World War II next generation experience across three different game modes: Campaign, Multiplayer, and Co-Operative. Featuring stunning visuals, the Campaign transports players to the European theater as they engage in an all-new Call of Duty® story set in iconic World War II battles. Multiplayer marks a return to original, boots-on-the ground Call of Duty gameplay. Authentic weapons and traditional run-and-gun action immerse you in a vast array of World War II-themed locations. The Co-Operative mode unleashes a new and original story in a standalone game experience full of unexpected, adrenaline-pumping moments.

1. Install this addon to the same folder, where singleplayer game is installed
2. Run it from desktop icon or from “Steam.exe” in game root (it’s not original “Steam.exe”, just the launcher
3. Select game mode by clicking YES (for MP) or NO (for Zombies)
4. After alert window, close your Steam application and run it again. Don’t worry, you need to do it once
5. With Steam running in background, run the game again and you can play MP or Zombies with bots (use Local Game menu). For playing with real players via LAN, read instructions below
6. Be advised to use some fake Steam account for this, just in case

Use any LAN-over-Internet software for LAN play, like Tunngle or Evolve.