Unity3D

Unity3D 3.0 has arrived!

Some of the good stuff:
- Very clear & easy to use documentation & support wikis etc.
- Lots of free professional tutorials
- Fantastic engine, see specs: unity3D engine
- Supports lots of different file formats (3D/2D etc)
- Editor customization, plugins, addons..

Whats new in V3?
Unity3 whats new

Download the free version: Unity3D free download

Dont forget to check out live demos!
Unity3D webplayer demos
(there are many demos, click the > arrow to see more at bottom list)