Make nights pitch black, customise the lengths of day/night cycles, enable night only attacks and darken space platforms/distant planets as they get further from the sun! All configurable.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Changes to enemies or entirely new enemies to deal with.
Map generation and terrain modification.
Changes to power production and distribution.
The lava on Vulcanus also gets pitch black at night
