They should fuse the games into one.

@Bmcclory
Technically Shuttles Are Space Planes

Actually maybe better with newer coding or tech they can put in the game to optimize for better aircraft physics and also you can go to space @Bmcclory

Who will ever play SimplePlanes anymore anyways there will be space planes in SimpleRockets 2 so you don’t need to do anything anyways There’s already aerodynamic physics in SimpleRockets and it’s certainly possible to bring some of the parts from SimplePlanes @Bmcclory

Shuttle parts will be a thing Andrew said. That's your spaceplanes.

And it’s not possible