Perfect combo of fun logistics challenges
Collections of mods with tweaks to make them work together.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Trains are great, but what if they could do even more?
Changes to enemies or entirely new enemies to deal with.
Map generation and terrain modification.
Things related to oil and other fluids.
Furnaces, assembling machines, production chains.
Changes to power production and distribution.