Frag is a 3D first person shooting game written in the Haskell programming language (not written by me). It looks a bit jerky because of the capturing software i'm using but look closely at the framerate counter.

I will write how to make a build yourself later.

EDIT: so i've written a blog and on how to build, install and run frag the easy way: http://monadickid.blogspot.com/2008/11/haskell-eye-for-windows-guy.html