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