Introducing 3 types of missile shooting turrets. Space Age version: https://mods.factorio.com/mod/missile_defense_systems_sa
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