How To Reset Terraria Achievements

File Explorer + Local Drive (or wherever you installed steam [most likely Program Files]) + Steam + Userdata + 135248458 + 105600 + Remote then delete the achievements file. Remember to turn off steam cloud saving before you delete the achievements. Then turn it back on once they are gone. I remember this tutorial being helpful for a few people and I still remember how to do this for some reason so here ya go