Adds new by-products; slag to ore-processing recipes and tailings to nuclear processing recipes; which can be reprocessed into raw materials. - Smelting ore generates slag - Process slag into useful materials - Processing nuclear materials produces tailings which also need to be processed - Further research improves slag processing - Support for BZ ores - New slagblock option - mining ores produces a configurable amount of slag, from 5% to 95%.
Mods introducing new content into the game.