This mods adds 3 new tiers of underground Space Pipe made specifically for Space Exploration. First tier is unlocked after Biological science 2 and Material Science 2
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