He used a few different techniques. 1. Used CoreRT instead of the standard .NET libraries 2. He avoided using functionality that would use GC in the first plac

He used a few different techniques. 1. Used CoreRT instead of the standard .NET libraries 2. He avoided using functionality that would use GC in the first place 3. Created his own alternative runtime library w/out GC and exception handling 4. Created a base type library for some of the System functions 5. Re-directed certain functions like Thread.Sleep to smaller implementations in specific libraries. The blog posting is well worth reading: https://medium.com/@MStrehovsky/building-a-self-contained-game-in-c-under-8-kilobytes-74c3cf60ea04 https://medium.com/@MStrehovsky/building-a-self-contained-ga...