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