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