flare : Free/Libre Action Roleplaying game ( https://github.com/clintbellanger/flare-game )
freeablo : Modern reimplementation of the Diablo 1 game engine ( https://github.com/wheybags/freeablo )
gambatte : An accuracy-focused Gameboy / Gameboy Color emulator ( http://sourceforge.net/projects/gambatte )
residualvm : A cross-platform 3D game interpreter for play LucasArts' LUA-based 3D adventures ( http://www.residualvm.org/ )
stratagus : A realtime strategy game engine ( http://stratagus.sourceforge.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a hasufell
For Paludis use this rsync : rsync://gentoo.zugaina.org/hasufell-portage
If you have a problem : ycarus(-at-)zugaina.org