Here is the full list of all 50 30XX achievements.
This was Delta's Home, once.
Complete level 8.
Net at least 100 Memoria in a single run.
Unlock all Memoria upgrades.
Start a third run in one game session.
Die 50 times.
Complete level 4.
Defeat Loot Omega.
Complete a Core set.
Complete the game.
Complete a Rush Job.
Equip at least 12 Cores at once.
Complete the game, scoring Gold in all Glory Zones and Contemplation Rooms.
Beat the game with all 8 boss powers.
In the 2200s, we destroyed ourselves. They remained.
Errors, accumulated over and across time.
Was there ever really a choice?
Complete 10 levels in Community Mode.
Complete Ellie's Gauntlet, starting with 3 or fewer lives.
Complete the Resonant Armor set.
Complete a Daily Challenge.
Complete 5 Daily Challenges.
On level 8, destroy all four of Zen Primus' Shield Statues within a four-second window.
On level 8, avoid damage from Echobeast for one minute without destroying any Sonar Bouncers.
On level 8, destroy all four Lethal Tempo faces with a single attack.
On level 8, defeat Hoot Omega before it reaches its final position.
On level 8, defeat Absolution without letting a Void persist for longer than two seconds.
On level 8, defeat Capital Punishment using only the room's Exploding Barrels.
On level 8, defeat Legacy without dealing damage to any of his Shapes.
On level 8, defeat Experiment 9 without using the Gravity Fields (always be upside down).
Complete the game within 28 minutes.
Complete the game with 10 or less maximum HP.
Beat the game with the starting primary and no boss powers.
Complete a Pilgrimage 2 run in 35 minutes.
He gave himself to something more.
Was this what it was all for?
Complete the game with 10 HP or less remaining.
Complete the game with at least 3 Prototype Augs and no System Restore.
Complete the game at 5+ Entropy.
Complete the game at 10+ Entropy.
Complete the game at 15+ Entropy.
Complete the game at 20+ Entropy.
Complete the game at 25+ Entropy.
Complete the game at 30+ Entropy.
Complete the game having taken damage ten or fewer times.
She held out as long as she could.
This is what it was all for.
Complete a run without picking up any nuts.
Have 500 HP (Endless excluded).
Have 250 nuts (endless excluded).