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