I'm trying to prove to someone that Strategy 3: The Dark Legions, created by Marcell Baranyai, found here:
http://http://www.mascot.hu/, is
not based on the Glest engine. One of his early betas has a date of August 16, 2002. I've been looking for a history or full changelog of Glest, but I haven't found one.
The graphics look very similar, which is why the aforementioned someone believes it uses the Glest engine.