Simply has every currently available train vehicle mod on the mod portal as a forced requirement. Glorified shortcut to quickly enable all of these vehicle mods (mainly used for compatibility testing).
Collections of mods with tweaks to make them work together.
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