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