Here is the full list of all 34 Liminal achievements.
Collect 50 Daily Credit rewards.
Collect 10 Daily Credit rewards.
Complete 10 Calm experiences.
Unlock 10 experiences.
Complete 10 Awe experiences.
Add 5 experiences to Favourites.
Complete 10 Energy experiences.
Complete 10 Lab experiments.
Unlock 3 Favourites slots.
Complete the Calm experience, Hypnosis.
Complete 30 experiences.
Complete 10 Pain Relief experiences.
Complete the Awe experience, Descent.
Complete the Calm experience, Above the Clouds.
Unlock 1 Favourites slot.
Add 1 experience to Favourites.
Complete the Calm experience, Light Rain.
Complete the Calm experience, Ripple Effect.
Complete 1 Lab experiment.
Complete the Energy experience, Ion.
Collect 1 Daily Credit rewards.
Unlock 1 experience.
Log in with a user account.
Complete the Calm experience, Sublime Blue.
Complete the Pain Relief experience, Relief Point.
Complete 1 Calm experience.
Complete 1 Pain Relief experience.
Use the pulldown/settings menu.
Complete the Awe experience, Boundless.
Complete 1 Energy experience.
Complete 1 Awe experience.
Complete the Energy experience, Splat.
Earn 2500 credits.
Visit all 5 arenas.