Why i cant run GAMES?

i instaled The Android-x86 4.4-RC2
<http://www.android-x86.org/releases/releasenote-4-4-rc2>, the OS is realy
fast, but after install, the GAMES dont run.
I have AMD CPU with AMD GPU, youtube also are realy fast, only games dont
work!!!
Someone know why? and how to fix it?

Thanks!!!