Here is the full list of all 35 The Expanse: A Telltale Series achievements.
Find all Data Logs in all Episodes
Complete Episode 5 with all Data Logs
Keep Maya alive
Keep Cox alive
Keep All Possible Crewmates Alive
Rayen kills Arlen
Complete Episode 4 with all Data Logs
Find all the Scavenge Items in the game
Complete Episode 3 with all Scavenge Items
Complete Episode 3 with all Data Logs
Complete Episode 2 with all Data Logs
Complete Episode 2 with all Scavenge Items
Give Cox the Bottle of Scotch
Discover the truth about Vigil's past
Give the Twins some Medicine
Found all Scavenge Items in Episode 1
Found a Laser Crystal for Virgil
Complete the Archangel story
Play three chess moves against Arjun
Get the votes to oppose Mendez’s motion on the first try
Open the Secretary-General's safe
Practice meditation at the Buddha statue
Complete Episode 5 of The Expanse
Keep Khan alive
Complete all Episodes of The Expanse
Help Virgil overcome his panic attack
Complete Episode 4 of The Expanse
Made it past the Drones in the Mines without being caught
Complete Episode 3 of The Expanse
Complete Episode 2 of The Expanse
Listen to Maya’s Music
Give Vigil the Mushroom Powder
Give Khan a Gift
Find all Data Logs in Episode 1
Complete Episode 1 of The Expanse