Open-world
small solar system i.e. planets relatively close to each other
small round planets you can fly around in like 1 minute
no more on rails, you can go anywhere
can go in walker mode if you want when landing
missions pop up from time to time
get rewards to upgrade ship
also can find items on planets
asteroid belts and missions also in space
missions range from rescuing people to doing a space race or fighting armadas or something
Great star fox near the center of the solar system where you can go talk to crew and recruit them for missions. Also where you go to upgrade ship
Endgame requires doing a major mission on each planet which unlocks the final Andross fight or something
SNES simplistic artstyle (I don't like modern graphics)
You NEVER leave your ship and you NEVER mine or craft shit. No survival crap, no "your fuel gauge is almost empty!". NONE of that.

I kinda want to make a game like this with OC but I'm not really an artist. Maybe one day