That's a good one. I actually just started reading this (like, I'm on chapter 3) and then I heard the author on the Solarpunk Now! podcast, and it sounds like the book goes some amazing places.
Anno 2070 has kindoff a Solarpunk vibe if you play the ecos or a Cyberpunk if you play the tycoons. The setting is not 100% on point, but it is still a great SP game
Terra Nil is a Solarpunk game where you have to regreen the earth.
Tomorrow Land is really good film about the hope we need to create a better society
I'm currently reading the Glass and Gardens solarpunk anthology (thanks for the reminder) and I'll let you know if I think it's a good fit for FA! So far I've read two of the stories and liked one quite a bit.