WadC (Wad Compiler) is an Integrated Development Environment and functional programming language for developing Doom-engine maps. It can be used to generate complex levels which can be saved in Doom's WAD format.

Strigi client is a Qt4 client (GUI) for the Strigi Desktop Search software.

TinyScheme is an implementation of the algorithmic language Scheme that aims to very small memory footprint while being as close to R5RS as practically feasible. TinyScheme is also a good base for hacking, given the implementation's small size, easy gluing with C and code being fully reentrant.