The one thing that made me stand up and notice open source was Ogre3D. Thats an awesome project and works well with blitzmax. Video Lan player is pretty nice too.
Other than that I have seen a lot of poorly supported mediocre programs that would put off most people that aren't willing to go in search of the few gems out there.
Other than that I have seen a lot of poorly supported mediocre programs that would put off most people that aren't willing to go in search of the few gems out there.