I bet there may be planets out there which rotate about it's Star at ungodly slow speeds.
On a moon you could have a lot of different options in this regard. Severe weather events and more eliptical orbits could have similar global effects over longer spans of time.
I think the most interesting option might be to have permanent dark/light sides. Civs start on the fringes, and can move into the light side or the dark side. You'd have different technological and infrastructure development necessary for surviving on each side.
There could be some cool interaction with the orbital layer ... reflective sails for the dark siders, shade sails for the light siders.
SMAC/X had the aphelion and perihelion mechanic that boosted or reduced native life over a 100 turn/year cycle - that was quite neat and clever.On a moon you could have a lot of different options in this regard. Severe weather events and more eliptical orbits could have similar global effects over longer spans of time.
The problem with a permanent light+dark side, is that the game would be Very boring
~45% of the map would be uninhabitable desert
~45% of the map would be uninhabitable ice
~10% would be tiles worth colonizing, that might have wildlife
basically it would be easier just to play a duel map with all 8 factions
SMAC/X had the aphelion and perihelion mechanic that boosted or reduced native life over a 100 turn/year cycle - that was quite neat and clever.
I bet there may be planets out there which rotate about it's Star at ungodly slow speeds.
It would be actually pretty cool if the planet was customizable, similarly to SMAC/X - choosing the axis, rotation speed and other features affecting the way map is formed.
The minds behind the seeding specifically selcted "Planet" because it would be very hospitable to human life (just the right elements, temperature, gravity, maybe even atmospheric composition...