..., Xubuntu, Fedora and OpenSUSE 32-bits.
If you're curious about what's inside the *.run files, you can use AppImageExtract:
https://sourceforge.net/projects/portable/files/AppImageExtract/download
If you want to improve/modify/fix a package you can use AppImageKit to rebuild the package yourself.
The apps posted here are not likely to run on 64-bit systems. However there's a tutorial that may eventually help you run them:
http://tinyurl.com/lqbxygy