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T4 (World at War) — Co‑Op/Zombies

Required: You must own Call of Duty: World at War on Steam. If your Steam account doesn’t own it, the client will not work.

Requirements

Default Windows path (Steam):

C:\Program Files (x86)\Steam\steamapps\common\Call of Duty World At War

Set up T4 (Co-Op/Zombies) in the Plutonium Launcher

  1. Open the Plutonium Launcher and click “T4 Co‑Op/Zombies” in the left sidebar.
  2. Click the “Setup” button.
  3. When prompted, select your World at War game folder (see the default path above).
  4. Confirm the folder; the launcher will validate and prepare your files.
  5. Click “Play” to launch T4 Co‑Op/Zombies from the launcher.

Notes

For more detail, see the official Plutonium guide.

Open the official Plutonium T4 guide