Genius Games always appreciate receiving feedback about our games in development. Email shelley@geniusgames.org, subject line “Playtest - [Your Name]”, and they’ll email you the link to the current Print-and-Play version of their game (that you can print on almost any computer), as well as a rubric for providing feedback. You can also check out our FB group specifically for game development feedback called The Geekiest Science Game Playtesters Around.