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