dfhack : Memory hacking library for Dwarf Fortress and a set of tools that use it ( http://github.com/DFHack/dfhack )
dontstarve-updater : extracted updater from Don't Starve ( http://www.dontstarvegame.com/ )
dwarftherapist : Management tool designed to run side-by-side with games-simulation/dwarffortress ( https://code.google.com/p/dwarftherapist/ )
irpgstats : IdleRPG db parser and pretty-printer ( http://eroen.eu )
makeobj : Tool for creating Simutrans paksets. ( http://www.simutrans.com/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a eroen
For Paludis use this rsync : rsync://gentoo.zugaina.org/eroen-portage
If you have a problem : ycarus(-at-)zugaina.org