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