Seablock but without the sea, and you make a rocket by duplicating resources instead of from water. Build your own space station / satellite / orbital rocket launchpad / factory thing
Heya! a problem I've found in regards to compatibility is with the Editor Extensions mod, which I can't seem to use with SpaceBlock. Whenever I press ctrl+shift+E to go into the lab, the game freezes. I'm guessing it's because the EE lab doesn't know what to do with the altered world generation, maybe? That's a pure guess, though.