I'm glad you liked the direction I went with the theme, but... I don't think the distinction you're seeing between minimalist and minimalistic actually exists? Minimalist as an adjective is a perfectly valid word, and I think what you're thinking of as "minimalistic" a lot of people (including the jam host, most likely!) would just describe as "minimalist". The word doesn't necessarily imply a person that is a minimalist.
Well. In English, it seems like, "minimalist" can also be used as an adjective, altough it can also be used as a known. Meanwhile minimalistic is purely and adjective. For me this is particularly confusing, since in German "Minimalist" is only a person which is minimalistic, while "minimalistisch" means "minimalistic". But in the end my message still holds, since your game is "both".