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
'The Greedy Captain' completed
'Chaka Datu's Legacy' completed
'The Split Soul' completed
'Garcia's Masquerade Uncovered' completed
'Following Garcia's Trail' completed
'Steelbeard's Artefact' completed
'The Journey to the Underworld' completed
'The Cunning Captain' completed
'Build a Raft' completed
'The Gnome Eater' completed
At least 5 crew members on the ship
'Ship's Equipment' completed
'A New Ship' completed
Learned each skill once
'Free Hawkins' completed
'The Titan Weapon' completed
'The Ancestors' Blessing' completed
'Become a Pirate' completed
'Find Steelbeard' completed
Found first treasure in the game
Won drinking duel mini-game 10 times
Killed 20 ambient animals
Collected 20 legendary items
Collected 10 legendary items
Completed 250 quests
Killed 2000 monsters
Killed 500 monsters
Killed 50 sea monsters
Killed 10 giant crabs
Acquired 100,000 gold
Acquired 300,000 gold
Killed 10 monsters
Won duel against Severin
Drank first rum
'Rescue Patty!' completed
Acquired 1000 gold
'Four Muskets against Crow' completed
Travelled by ship 20 times
Used monkey 20 times
Picked 100 locks
Dug up 50 treasures
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