Here is the full list of all 142 Stellar Interface achievements.
Flew for 1h with each spacecraft.
Played for one day.
Used all softwares at least once.
Completed 20 different gold missions.
Played for 20 hours.
Killed 500 bosses.
Visited 25 Overlords.
Cleared 1000 levels.
Died 100 times.
Used all consumables at least once.
Used consumables 1000 times.
Got your projectiles 2x bigger and your spacecraft 2x smaller.
Killed 50000 enemies.
Visited 500 regular levels.
Used consumables 500 times.
Completed 20 different bronze missions.
Completed 20 different silver missions.
Visited 100 merchants.
Visited 100 Lost Lords.
Played for 10 hours.
Killed 100 bosses.
Cleared 500 levels.
Died 50 times.
Proved that you are the strongest of them all, 5 times.
Completed 10 different gold missions.
Proved that you are the strongest of them all, 3 times
Visited 50 Lost Lords.
Coated some iron in your skin, then electrified it.
Cleared all levels 5 times.
Cleared all levels 10 times.
Cleared all levels 20 times.
Cleared all levels 50 times.
Proved that you are the strongest of them all.
Visited 10 Overlords.
Had 20 active drones.
Had Joy, Capitalist Consumerist, Salty Elixir and Cloverleaf installed at the same time.
Killed 20000 enemies.
Unlocked Stag.
Killed 50 bosses.
Played for 5 hours.
Defeated Homunculus 5 times.
Used consumables 100 times.
Unlocked Star Fury.
Installed 80 different softwares.
Unlocked Eagle.
Completed 10 different bronze missions.
Completed 10 different silver missions.
Cleared 200 levels.
Died 10 times.
Ate two meals.
Defeated Homunculus 3 times.
Defeated The Hive 5 times.
Unlocked Dove.
Used consumables 50 times.
Killed 10000 enemies.
Defeated Hober Mallow 5 times.
Visited 100 regular levels.
Killed 20 bosses.
Defeated Space Winner 5 times.
Completed 5 different bronze missions.
Defeated Space Winner 3 times.
Unlocked Lily.
Cleared all levels 2 times.
Completed 5 different gold missions.
Defeated Homunculus 1 time.
Defeated The Hive 3 times.
Cleared 100 levels.
Visited 10 Lost Lords.
Accumulate at least 10 usages of a single consumable.
Installed 50 different softwares.
Unlocked Kilgore.
Defeated Space Winner 1 time.
Completed 5 different silver missions.
Cleared 20 levels in a single run.
Killed 5000 enemies.
Unlocked Erebus.
Defeated Hober Mallow 3 times.
Killed 10 bosses.
Visited 10 merchants.
Played for 1 hour.
Defeated The Hive 1 time.
No damage taken in 3 consecutive levels.
Cleared 50 levels.
Unlocked Corvette.
Installed 25 different softwares.
Cleared all levels 1 time.
Stocked up 20 cartridges without using them
Defeated Hober Mallow 1 time.
Used consumables 10 times.
Have 10 active drones.
Visited your first Lost Lord.
Killed 1000 enemies.
Completed all missions in a run.
Completed a level without any casualties.
Visited your first Overlord.
Installed 10 different softwares.
Cleared 10 levels.
Visited 10 regular levels.
Killed 500 enemies.
Installed 5 different softwares.
Visited your first merchant.
Killed 100 enemies.
Killed 10 enemies.
Died 200 times.
Died 500 times.
Died 1000 times.
Visited 1000 merchants.
Visited 50 Overlords.
Visited 100 Overlords.
Visited 1000 regular levels.
Visited 2000 regular levels.
Killed 1000 bosses.
Killed 100000 enemies.
Installed quintuple projectiles and quintuple radial projectiles.
Cleared 2001 levels.
Flew for 2h with each spacecraft.
Flew for 3h with each spacecraft.
Completed all bronze missions.
Completed all silver missions.
Completed all gold missions.
Obtained all badges in all spacecrafts.
Unlocked all achievements!