An abstract overhaul focusing on spoiling mechanics. For people wanting a novel challenge like Ultracube, instead of just "build more of stuff".
Large total conversion mods.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Furnaces, assembling machines, production chains.
Continuation of Belt Overflow mod by GopherAtl and Sparr. Causes belts to overflow at the end as soon as items reach the terminal tile.
Small changes concerning balance, gameplay, or graphics.