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