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