Kerbal Space Program 2 is still stuck in limbo, so fans created a KSP1 mod to deliver on the devs’ original promise. One major star system is already implemented, with another on the way.

There is also Kerbal Space Program 2, but this game has mostly negative reviews. Personally, I played the second one and it was incredibly buggy, with extremely long loading times.

It's no wonder that the game is one of the top space flight simulators, although the "space flight" part is a stretch. Still, it's no surprise that Kerbal Space Program is one of the top space ...

The mechanical complexities of space are largely relegated to sims like Elite Dangerous or Kerbal Space Program.