I'm known on www.pckf.com also as tulip, one of the few remaining Keen fans. I'm currently graduating, and in my free time, modding Keen, some Diablo 2, and helping on other Keen projects like Commander Genius (clonekeenplus.sourceforge.net)
Keen 5 mod - first full release. You will need to provide your own Keen5e.exe file and place it in the mod directory. Run setup and then keen9. Have fun!