to be honest it's not an area of gaming i've ever explored that much even though i am interested in it. I really liked Eschatos if that qualifies as doujin. and a bit ago I randomly picked up Kokoro Clover Season 1 which is like a game styled as a kids' sunday morning anime mostly made by 1 person & its extremely cute and charming in its presentation although the actual gameplay part isn't much to write home about