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