Games don't get more fun with more fidelity, minecraft and terraria are very low fidelity but still fun. Fidelity improves other aspects, but not the "fun" part. Audio feedback and visual feedback are very important for fun though, like the knocking you hear when hitting things in minecraft and blopping from picking things up, but it is better to try to make things fun without that at first since those can make just clicking around in a forum fun.