Start underground. The Nauvis surface is hostile and normal surface construction is forbidden; dig out cave space, use shafts, and build your factory below.
Large total conversion mods.
Transportation of the player, be it vehicles or teleporters.
New ways to deal with enemies, be it attack or defense.
Map generation and terrain modification.
New Ores and resources as well as machines.
More than just chests.
Could the surface habitats draw a boundary for what can be built in them when selected?
It is really hard to figure out where you can actually build with the least number of habitats
added
