VOYEUR: A photo of Lucy or Grace, plus access to an exclusive online 'look over my shoulder' at the state of the game as it develops, my personal programming diary, explanations of the theoretical stuff, and my raw laboratory notes.
GURU: The same as testers, but become an advanced 'community guru' beta tester, with back-door access to my personal development tools (gene editors, advanced medical monitors, etc.), plus detailed technical info and email support with the biology and game API, as well as access to a special discussion forum.
SUPERHERO: As for sponsors, plus a signed and framed piece of original storyboard artwork or a page from my lab notebook, with my original experimental brain or biochemistry diagrams and notes on it. Think how much one of Leonardo's notebook pages is worth now ;-)