cairnswm, you can find the AirBlast download at http://glscene.sourceforge.net/index.php, maybe you'll have better luck downloading from there.

Of all the entries, I had crash issues with the two dgdev entries until I turned off sound, at which point the dragons one runs, but the tanks one still crashes after the basilisk logo. The tank game goes a little bit further with software mode, but as nothing seems to be able to move I'm not sure it's really okay... I'll try on another machine later (this one was an AXP with a GF3).
For the MindNever entry, I'm essentially stuck in the UI, I tried starting two instances on the same machine, but they did not seem to find each other. Is there a console or "cheat" of some kind to enter it with a single player?

More comments at a later time