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