Oppositely Opal (2015) About the Game Reviews Gallery Similar Games Troubleshooting PC (Microsoft Windows) Mac Linux Amiga Web browser Release Date: 2015, February 16 Description: A piece of Interactive Fiction created with Inform 7 by Buster Hudson. Storyline: You've practiced long and hard for PotionComp, but Grusilda won't give up her title so easily. UGH! Curse that Grusilda! A one-room potion-brewing spell-casting parser puzzler, where things might go opposite the way you planned. Keywords: text adventure