Hi! I did a little experiment in last week with haskell. According this ( http://graphics.cs.brown.edu/games/quake/quake3.html) tutorial, I wrote a quake 3 bsp map loader and viewer from scratch. (It is independent from frag) The code is quiet small (~900 lines with comments) and it is based on binary and vector libraries. You can find the cabalized code here: http://code.google.com/p/lambdacube/source/browse/#svn/trunk/bsploader This was my first meet with vector library, so the code is probably not the most efficient one. Any improvement suggestions are welcome! :) Cheers Csaba PS: read the README file. navigation: arrows + mouse (holding right shift increase cam speed)