Adds plutonium (which is blue, of course!) in order to make the nuclear fuel cycle a bit more complex. Now standalone for 2.0.
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