Mars Horizon achievements

Complete every Research in the Missions Tree

Launch a vehicle with a 1% chance of Critical Failure... which explodes

Complete Human in Space, Orbital EVA, Mulitcrew Orbit, and Crewed Moon Landing using the same astronaut

Have a single building with 6 active Positive Adjacency effects

Complete a Modular Space Station

Launch a crewed moon mission using a Saturn V booster

Launch a Space Telescope into orbit

Complete every Research in the Vehicles Tree

Land on the Moon before any other space agency

Launch a mission using a reusable spaceplane

Remove every obstruction from your base

Complete the Crewed Moon Landing mission