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