Allows melting copper, iron and steel plates back into molten metal using the foundry. Requires 'Molten recycling' technology research.
Mods introducing new content into the game.
Counted when a user downloads a mod release for the first time. Before Nov 2021 it counted everytime a user clicked the mods download button.
Counted when a user downloads a mod for the first time. Has no data before Dec 2022