Because there is no official modern download, the community has created alternatives:
However, the path to downloading this classic today is fraught with difficulty, raising questions about digital preservation. Activision’s official Call of Duty: Zombies app, which included World at War maps, has long since been delisted from the Google Play Store. The reasons are typical of the mobile industry: compatibility issues with modern Android versions (particularly 64-bit requirements), server shutdowns, and the simple march of time. Consequently, a player seeking "Call of Duty World at War Zombies download Android" today will find themselves in the murky waters of third-party APK (Android Package Kit) sites. While these files contain the functional game, downloading them carries significant risks—from malware-laden files to a complete lack of multiplayer matchmaking. The Nacht der Untoten bunker is still there, but many who download the old APK find themselves fighting alone, locked in a silent, offline limbo. Call Of Duty World At War Zombies Download Android