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Does it install, then not work at all? Or do you mean that in the Play Store, it says the app is incompatible with your device?
The reason for asking is i once bought GTA3, played it for a few hours. Then the next day after flashing a new rom the app was now incompatible.
Has the game ever worked on it before?
Its possible that there is an easy fix. With some devices, games/apps can be incompatible due to the program not having GUI resources at your device's native resolution. With some roms you can make those apps work but i havent read alot about it. Ill post back here in a bit after doing some research, as i have been meaning to figure this out myself as well.
Edit: it seems i was beaten to the punch lol
^^^what that guy said