fheroes2 : Recreation of HoMM2 game engine ( https://ihhub.github.io/fheroes2/ )
s25rttr : Open Source remake of The Settlers II game (needs original game files) ( https://www.siedler25.org/ )
vcmi : VCMI is work-in-progress attempt to recreate engine for Heroes III. ( http://vcmi.eu )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a vortex
For Paludis use this rsync : rsync://gentoo.zugaina.org/vortex-portage
If you have a problem : ycarus(-at-)zugaina.org