Here is the full list of all 50 ELEX achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Played 80 hours of Elex.
Picked 100 locks.
Sealed the fate of Abessa City.
Cracked 50 safes
Killed 1000 monsters.
Learned all Outlaw skills.
Sided against the Hybrid.
Cold value has reached 90
Served the Hybrid.
Cold is 10 or lower.
Learned all dexterity skills.
Learned all Berserker skills.
Learned all survival skills.
Learned all fighting skills.
Modified weapons 20 times
Learned all character skills.
Fallen to death 20 times.
Joined the Outlaws.
Collected 20 pictures.
Learned all Cleric skills.
Joined the Berserkers.
50 successful pickpockets
Earned 100,000 Elex shards.
Completed ELEX.
Fed Mana to the Hybrid.
Found Calaan
Completed - Showdown with Kallax.
Completed - Old Obligations.
Completed - The Claws.
Started a relationship.
Completed 300 missions.
Completed - Zardom's Battle Plan.
Killed 300 monsters.
5 companions
Joined the Clerics.
Completed - Origin The Power of the Center.
Reached level 20.
Killed 20 Albs.
Killed 20 bandits.
Killed 50 people
Completed - Decaying Powers.
Completed - Chaos of Emotions.E86
Earned 10,000 Elex shards.
Completed - Tramp Confederacy.
Teleported 20 times
Completed - Stolen Equipment.
Killed 20 monsters.
Earned 1000 Elex shards.
Completed - Survival
First jet pack flight