racer-bin : A car simulation game focusing on realism, in the style of Grand Prix Legends ( http://www.racer.nl/ )
torcs : The Open Racing Car Simulator ( http://torcs.sourceforge.net/ )
toycars : a physics based 2-D racer inspired by Micro Machines ( http://sourceforge.net/projects/toycars )
vdrift : A driving simulation made with drift racing in mind ( http://vdrift.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a rainyday
For Paludis use this rsync : rsync://gentoo.zugaina.org/rainyday-portage
If you have a problem : ycarus(-at-)zugaina.org