Unity3D是由Unity Technologies开发的一个让你轻松创建诸如三维视频游戏、建筑可视化、实时三维动画等类型互动内容的多平台的综合型游戏开发工具，是一个全面整合的专业游戏引擎。Unity类似于Director,Blender game engine, Virtools 或 Torque Game Builder等利用交互的图型化开发环境为首要方式的软件其编辑器运行在Windows 和Mac OS X下，可发布游戏至Windows、Mac、Wii、iPhone和Android平台。也可以利用Unity web player插件发布网页游戏，支持Mac 和Windows的网页浏览。它的网页播放器也被Mac widgets所支持。

Unity 3D Pro 3.5.5 f3

Unity is an integrated authoring tool for creating 3D video games or other interactive content such as architectural visualizations or real-time 3D animations. Unity is similar to Director, Blender game bbs.renrencg.cn engine, Virtools or Torque Game Builder in the sense that an integrated graphical environment is the primary method of development.