There should be moons for planets.
Moon sizes
1- 10 space Very Tiny-Mega Colossal
2- 13 space Small-Mega Colossal
3- 16 space Large-Mega Colossal
4- 19 space Massive-Mega Colossal
5- 22 space Colossal-Mega Colossal
They cannot be conquered unless the planet gets conquered itself.
Moons are used for addtional production or defence, attack, etc.
All Common
Very Tiny-1 moon
Tiny-2 moons
Very Small-3 moons
Small-4 moons
Average-5 moons
Large-6 moons
Very Large-7 moons
Massive-8 moons
Very Massive-9 moons
Colossal-10 moons
Mega Colossal-11 moons
For extra information let me know.
Enjoy
