As a kid I found this game online that allowed you to create your own 'tactics' style RPG battles. I think it was call quest creator? I can't remember. It was really fun to screw around with. I remember my dad giving me shit for playing it because he though it was a waste of my time in comparison to other prettier/advanced games. (now he just pushes the idea that all games are a waste of time.)

damn... both games look awesome, but for whatever reason i never bother w/ mac emulation


two that i remember from my powermac were spacestation Pheta, which came bundled with a level editor.  basically it's a platformer where you have to find keys to unlock doors that let you get to the end of the level, but at the same time you can't fall from too great a height, and your oxygen ticks down with each step. 
http://www.youtube.com/watch?v=7gtVXTmogjg


that doesn't make it look like much fun (maybe it wasn't) but i spent a lot of time making huge haunted house themed level-sets in it


i also used to remember going to the discount book store and buying discs of shareware for 2 dollars a piece (i'm sure this was illegal, in retrospect) and playing through a bunch of hypercard stack adventure games up until the invisible walls cut you off from the pay content.  uninvited was always my favorite,
http://www.youtube.com/watch?v=rsOwfcKvSV0


oh yeah, spectre VR too.  awesome vector grafx shoot-em-up,
http://www.youtube.com/watch?v=b0X74Oe80tg


damn, i'd forgotten entirely about the low rent intro movie to it
http://www.youtube.com/watch?v=lSmA61ZI3yo

http://vimeo.com/15728655
http://www.youtube.com/watch?v=nahoPiLRPjE
http://vimeo.com/17660600 Spectre VR footage starts at 7:10

sick.  reminds me of max capacity's stuff.

http://youtu.be/lJCmsjnK_i8

not an rpg but it is THE ODYSSEY as done by 90's talking friendly dog WISHBONE (also hades was cool)


also i found a cool unreleased game (but with a demo) while i was on my amiga kick called "evil's doom":








http://www.whdload.de/games/EvilsDoomDemo.html