I would put your text under "Welcome to 90s.dev." If possible, I would further simplify it. I took a stab at it below but I am no marketer (or a game maker),

90s.dev simplifies making games and tooling for game creators via:

- an expressive API around a 320×180 web canvas,

- built-in sharing capabilities,

- an innovative GUI.

Each bullet would link to a relevant part of the documentation. I think you also need a page with examples.