Try 3-d as you may have got bored using 2-d:

If you would like to play 3d games online, then visit online3dgames.net.

There are tons of games in it. But, you should have an adobe flash player, Adobe Shockwave, plug-ins installed in your pc browser. Browse thousands of games and play in your own lovely way.

 There is also a great facility of playing by downloading them into your pc in some other sites...