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