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