These ebuilds come from http://gentoo.zugaina.org/.
If you have some problems, go to the official site first.
dangerdeep : a World War II German submarine simulation ( http://www.dangerdeep.net/ )
opencity : OpenCity is a full 3D city simulator game project. ( http://www.opencity.info/ )
openttd : OpenTTD is a clone of Transport Tycoon Deluxe ( http://www.openttd.org/ )
secondlife : A 3D MMORPG virtual world entirely built and owned by its residents ( http://secondlife.com/ )
secondlife-bin : A 3D MMORPG virtual world entirely built and owned by its residents ( http://secondlife.com/ )
simutrans : A free Transport Tycoon clone ( 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 zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org