Simple chains are a series of mods geared towards players seeking some extra, survival challenge in their resource production. In general, the end-product of these production chains are usually identical to the vanilla resources they revolve around, so it goes without saying that these mods are not designed to make the game any easier with improved versions of anything, but rather tax your colony's manpower to get work done.

They are designed to be tight in scope, adding as few new definitions to the game as reasonably possible.