Zonnon Compiler
Zonnon compiler for .NET was developed in 2004-2011 at ETH Zurich. A source code of a slighlty reduced fork of this compiler was then shared on CodePlex. Since CodePlex was shut down end of 2017, the source code for the Zonnon compiler was copied to GitHub.
Currently builds are only available at ETH Zonnon Compiler homepage.