Arig, a hot planet with vast deserts where only valuable resources can be found underground or in the sand.
Mods introducing new content into the game.
New places to build more factories.
Transportation of the player, be it vehicles or teleporters.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Map generation and terrain modification.
New Ores and resources as well as machines.
Things related to oil and other fluids.
Related to roboports and logistic robots.
Furnaces, assembling machines, production chains.
Changes to power production and distribution.
More than just chests.
Title, containers have 180 slots and take up 4 tiles, while 4 chests have a total of 192 slots. 200 slots would probably be a better amount to warrant the extra production and shipping requirements.