Game Engine http://unity3d.com/, also for Virtual Reality
basis for Atmosphir and other game environments - http://unity3d.com/gallery/game-list/
Can deploy as Fat Client or WebApp (well, with Web Browser PlugIn) or Mobile (IPhone and Android)
- Arcadia is the integration of the Clojure programming language and the Unity3D game engine. It brings a live coded, functional, dynamic Lisp to the industry standard cross-platform game development tool.