ags : A game/runtime interpreter for the Adventure Game Studio engine ( http://www.adventuregamestudio.co.uk/ )
fifechan : Lightweight cross platform GUI C++ library designed for games ( http://fifengine.github.io/fifechan/ )
fifengine : Flexible Isometric Free Engine, 2D ( https://www.fifengine.net/ )
openxcom : An open-source reimplementation of the popular UFO: Enemy Unknown ( http://openxcom.org/ )
wyrmgus : Modified Stratagus engine for Wyrmsun ( https://andrettin.github.io/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gamerlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/gamerlay-portage
If you have a problem : ycarus(-at-)zugaina.org