- Original By Chris Guthrie (chris@ic.berkeley.edu) and Ed James (edjames@ic.berkeley.edu)
- Later X11R3 Mods by Dan Dickey (ddickey@lotus.cray.com)
- Overhaul and killer robots by Jon Bennett (jcrb@cs.cmu.edu)
- Cleanup/Speedup/Fixes by James Anderson (no email)
- Wizardry by John Myers (jgm@cs.cmu.edu)
- Config and more by Mike Bolotski and Dave Gagne (mikeb@ee.ubc.ca and daveg@ee.ubc.ca)
- More cleanup by Joe Keane (jgk@osc.osc.com)
- Floating point fixes, integer trig, robots fixes, and more cleanup by Rob Ryan (rr2b+@andrew.cmu.edu)
- New damage code by Mario Goertzel (mg2p+@andrew.cmu.edu)