Factorio

Most likely automatically fills in things properly, probably. Preferrably both fuel and ammunition, if possible.

Sell and buy items/fluids/energy on the universal black market using trading chests/tanks/accumulators, choosing the frequency of exchanges and related fees. You can now sell your overproduction and buy things that you don't want to craft by yourself. You can also use these trading units as a paying shipment system.

Explore the world of thaumaturgy through magical research and development.

Compete against other players by purchasing biters to fight on neutral ground on your behalf.

additional/alternate power generation, MF, agriculture in a different way