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