Unity是一款跨平台的游戏开发工具，从一开始就被设计成易于使用的产品。作为一个完全集成的专业级应用，Unity还包含了价值数百万美元的功能强大的游戏引擎。Unity 4作为一个游戏开发工具，它的设计主旨就是让你能够创建令人惊讶的游戏。如果你之前尝试过Unity，请查看Unity 3都做了哪些更新。如果你是第一次尝试，那就好好看看吧，看Unity都能为你带来什么。Unity作为一种开发环境，可让你脱离传统的游戏开发方式，以一种更简单的方式专注于你的游戏开发。开发网络游戏、移动游戏、单机游戏，Unity都能完全胜任。
GAMEINSTITUTE GI RACING
*This is the source code and videos files for GI Racing, GI Racing 2.0 was a upgrade, but they didn’t separated it into a different project**
Experience the thrill of GI Racing 2.0! Compete on real racing tracks from all around the world in a variety of different automobiles. Work your way through the career mode and earn more lucrative contracts from bigger teams with better, faster cars. See how you handle the many different weather conditions in both day and night time driving modes. Enjoy state-of-the-art car physics and an adaptive driver AI system that creates exciting and realistic races, regardless of the player’s skill level.
Arcade racer with a simulation feel that is still welcoming to novice players
Competitive single-player career mode with Tournament Circuit and Trophy Room
Quick Race options let you jump right in and customize your racing experience
Stunning visuals and lighting provide an immersive and realistic world
Famous real world race tracks in a variety of countries
Realistic vehicle and cockpit damage make the game more challenging
Wheel, peddle, joystick, joypad, game pad, and keyboard support
Multiple difficulty settings and Driver AI that adapts to player skill level
Multi-GPU support providing accelerated rendering performance
Cinematic multi-camera replay system to watch back races frame-by-frame
Learn to build the game yourself with access to the official GI Racing tutorial video series
Members can download a complete GI Racing 2.0 project, all set up and ready to go in Unity 5 — including cars, tracks, AI and track tools, sounds, music, and source code. You should have your own racing games up and running in no time when you have this kind of a head start!