Do you like simple rockets 2, I like it a bit, there are many things you can do if you have knowledge of rocket science. many things you can do. like make your own
rocket, land on planets, colonize planets like mars, make the rovers,or just get a satellite into orbit.you can make planes also but it is not really made for that and unfortunately you don't have weapons.

But If you want to make planes only particularly Simpleplanes is the best.There are all theparts you need to make a plane.You can do many things like make a plane, ship, Drone, Car, Helicopters, Tanks, Boats, And many things.There is dogfight, many challenges, Races.Aircraft carriers.
But if you want to go to space in simpleplanes you should try simplerockets2.
These was my views on these 2 games but what do you think tell me in the comments.