I instantly assume it's android, which is good.
List of games your tablet could probably handle that I have on my droid:
Tetris (Google Play)
MX Mayhem + all the in-game expansion levels. (Google Play)
X Construct = build train bridges. (Google Play)
Some sort of table tennis game. (Google Play)
Speedx 3D (Google Play)
GTA III
GTA Vice City
Glow Hockey (Google Play)
n64oid + SuperMario64, Mario Kart 64, SuperSmashBros64, and Yoshi Story. (Available fo 3rd party install via SlideME Marketplace for 4.99 one time payment.)
Also- Google Earth, SkyMap, Google Translate, and Google Maps can be a fun time. Try using those and Skype on your tablet too. (not to mention Steam.)