If you are tempted to download a pre-assembled APK+OBB from MediaFire, Mega, or a random forum, consider these dangers:
If you manage to get it working, the core Condition Zero experience is there. counter strike condition zero for android apk data
But bugs are common: grenades may not throw correctly, weapon buying via console is often needed, and framerate drops during bot pathfinding. If you are tempted to download a pre-assembled
Critical Note: You cannot run CS:CZ on Android with just an APK. The APK without the data folder will either crash on launch or present a black screen. But bugs are common: grenades may not throw
Verdict: It is playable for casual bot matches on easy difficulty. It is not competitive. The precision required for headshots on de_aztec is nearly impossible without a physical keyboard and mouse (which Android supports via USB OTG – a recommended setup).