Hello, I'm Fleexy. I usually hang out at the Public Commander Keen Forum or Keen Modding. I developed Abiathar, a level and tileinfo editor for Commander Keen 4-6, Keen Dreams, and other games using that engine including Bio Menace. Please note that, as it was intended originally for Commander Keen, it has not been tested on all other games. Keep frequent back-ups.
Help file (PDF)
Download update client (fetches latest version)
Release thread on PCKF
Happy modding! If you need any assistance, contact me by e-mail or post in that PCKF thread.
Fleexy