I'm not a programmer myself, but there are some good old games that I dreamed somebody would have recreated an opensource engine for.
X-COM series (
EU and
TFTD) are my primary concern, yet it seems that I'm kinda
Microprose fanboy, so my other favorites are
Master of Magic and
Master of Orion 2 titles. Of course I would not dare to ask SupSuper to undertake such an endeavour, but it would be nice to know that there are people who share my passion for those old goodies