Well, took a while since last post here, lot's of things going on
Found a totally open source MMO/RPG game (including assets etc), Eternal Lands
but on big-endian is more like flatlanders edition, since everything is flat not rendering 3d models, could see other players sending messages on chat and see their icon moving on overworld map
Another cool game, Whiplash/Fatal Racing, added a preliminar support for mac os x, don't know if it'll work on mac though

yahooo! (there's still a small issue with this one, after car makes a first jump, engine sound stops working)
and just today, got Mania Drive working too, there's some initial mac os x support
repositories for the last two
Reverse engineering the 1995 game Whiplash/Fatal Racing - Link4Electronics/ROLLER
github.com
A fork trying to modernize ManiaDrive. Contribute to Link4Electronics/ManiaDrive development by creating an account on GitHub.
github.com
Regards,
Link.