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