I'm pretty sure this goes here, but if it doesn't then sorry.

anyway, before I found this site, I found www.toolkitzone.com and I've downloaded RPG toolkit (vr2 is better than 3 in my opinion, but they're both good) It is a program that lets you map out, design, and even play your own mini-rpg style game.

basic coding knowledge is needed to program the game, but if, like me, you dont know the first thing about coding, you can always ask one of the members for help coding the game.

they have interesting tilesets that could easily be used for mapping/map making.

so if you're interested check them out.
www.toolkitzone.com