You can sell and buy items. If you sell and buy everything, the game will be a little unballanced. It's based on Production Score of Vanilla PvP. For more balanced use of money, use only the mod Science to Money.
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