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