Make contact with the artificial planet Ferrum. An iron husk with a deadly atmosphere, Ferrum is an experimental planet mod where robots, buildings, and even the tech tree don't work the way you expect.
Mods introducing new content into the game.
New places to build more factories.
Augmented or new ways of transporting materials - belts, inserters, pipes!
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.