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