Full list of all 49 Risen 2: Dark Waters achievements. It takes around 35-40 hours to unlock all of the achievements in the base game on Windows.
The base game contains 43 achievements, and there are 2 DLC packs containing 6 achievements.
'Kill Mara' completed
'Defeat the Kraken' completed
Learned each skill once
Completed 250 quests
Killed 2000 monsters
Acquired 300,000 gold
Picked 100 locks
Acquired 100,000 gold
Killed 500 monsters
Dug up 50 treasures
Killed 20 ambient animals
Collected 20 legendary items
Used monkey 20 times
Collected 10 legendary items
'The Split Soul' completed
'Chaka Datu's Legacy' completed
'The Journey to the Underworld' completed
At least 5 crew members on the ship
'Steelbeard's Artefact' completed
'The Greedy Captain' completed
'Garcia's Masquerade Uncovered' completed
'Following Garcia's Trail' completed
'The Cunning Captain' completed
'Build a Raft' completed
'The Gnome Eater' completed
Killed 50 sea monsters
Won drinking duel mini-game 10 times
'Ship's Equipment' completed
Killed 10 giant crabs
Travelled by ship 20 times
'The Ancestors' Blessing' completed
'A New Ship' completed
'Free Hawkins' completed
'The Titan Weapon' completed
'Four Muskets against Crow' completed
Won duel against Severin
'Become a Pirate' completed
Found first treasure in the game
Drank first rum
'Find Steelbeard' completed
Killed 10 monsters
Acquired 1000 gold
'Rescue Patty!' completed
Killed all gargoyles and gave their eggs to Eldric
'The Marooned Sailor' completed
'The Air Temple' completed
Opened every deadly chest once
Killed all alligators on Treasure Isle
Set course for Treasure Isle for the first time