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