C# reference source code https://github.com/Unity-Technologies/UnityCsReference Example http://unity3d.com/support/resources/example-projects/ Survival shooter – Unity Technologies project with tutorial https://www.assetstore.unity3d.com/#!/content/40756?aid=1101lGsK https://unity3d.com/learn/tutorials/projects/survival-shooter-tutorial 2D Platformer – Unity Technologies project https://www.assets