Since there is no "one-click" official installer, you must follow a manual process to get the game running.
Unlike the standard CS 1.6, Condition Zero features advanced bots that make offline play challenging and engaging. Counter Strike Condition Zero Free Download For Android
You must own the original game files from a PC installation (Steam version is recommended). How to Install CS: Condition Zero on Android Since there is no "one-click" official installer, you
Download and install the Xash3D FWGS app from the Google Play Store or GitHub. How to Install CS: Condition Zero on Android
Ensure the valve folder is present. The czero folder depends on files located in the valve directory to run correctly.
Copy the valve and czero folders from your PC to a folder named xash on your Android device’s internal storage.
The Xash3D engine allows you to move and resize every button on your screen to fit your grip.