Have about 10 ringworlds under construction, but they are still a long way from finished.
I don’t waste my resources on building sphereworlds. There is no way this game will go on long enough to pay back the extra investment. According to my calculations that would take 150 + turns after the (possible) completion of the ringworld.
And the spheres are ugly too. Who wants a planet that looks like a moose’s *** clotting up the system?
