Richard "Lord British" Garriott basically invented RPG's and MMORPG's (creator of Ultima and Ultima Online). Shroud of the Avatar is his successfully Kickstarted single-player RPG.
Keep in mind that this was made in only 90 days. The graphics are rough, the combat isn't even designed right now. However, what's really interesting is the open-ended nature of the crafting and especially the conversation and quest systems. Seems promising.
I can't embed it for some reason, so check it out here.