Jesus i was wondering if outer wilds would be in the comments and no less than 4 OP comments for it. Great game, no mistake, but it is at opposite end of realism with something like elite or ksp. Still highly recommended, basically a piece of art and you fly around in a spaceship solving a mystery. If you mean hard sci-fi space, ksp is your butter, future sci-fi, galactic exploration, elite is where it is at, and outer wilds is like neither.