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