Here is the full list of all 50 Risen 3 - Titan Lords achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Completed 'Death Incarnate'
Picked 100 locks
Completed 'The Reactor'
Destroyed your soul rating until it was under 10
Completed 'The Missing Gnome'
Won the Drinking mini game 10 times
Dug up 10 treasures
Won the Arm-wrestling mini game 10 times
Travelled by ship 20 times
Acquired 100,000 gold
Acquired 300,000 gold
Completed 'The Oracle's Soldiers'
Completed 'The Blue Flower'
Used the monkey 20 times
Completed 'Booze's Befuddled Mind'
Completed 'Water Source Conflict'
Completed 300 quests
Killed 500 monsters
Raised your soul rating until it is over 90
Completed 'Zak's Temptation'
Got at least 7 crew members on the ship
Completed 'Green Flames'
Completed 'The Ancient Covenant'
Killed 50 Shadow Creatures
Collected 10 legendary items
Won the Knife-throwing mini game 10 times
Completed 'Chaos in Harbour Town'
Used the parrot 10 times
Completed 'A Follower of Magic'
Completed 'Menacing Shadows'
Killed 20 innocent animals
Killed 10 Scavengers
Completed 'Let's Get Out of Here'
Acquired 100 attribute points in Melee
Acquired 100 attribute points in Ranged
Acquired 100 attribute points in Cunning
Acquired 100 attribute points in Influence
Acquired 100 attribute points in Toughness
Acquired 100 attribute points in Dexterity
Acquired 100 attribute points in Magic
Acquired 100 attribute points in Spirit
Killed 10 monsters
Acquired 1000 gold
Found the first treasure in the game
Healed for the first time
Completed 'Cold Nights'
Completed 'Minions' Weapon Store'
Completed 'The Swearing-in Ceremony'
Completed 'The Kiss of the Dead'
Killed 2000 monsters