Here is the full list of all 31 DARK achievements.
Finished DARK on “easy”.
Finished DARK on “normal”.
Finished DARK on “hard”.
Rescued Rose.
Talked to Samantha at Headquarters
Rescued Tom.
Learned all the powers and their upgrades.
Subdued 5 opponents and Fed on them
Reached the ruins of Sanctuary
Found 7 PDAs
Earned ten experience rewards for completing areas without raising the alarm.
Made it through the club area at the Atlantis
Used Shadow Leap 50 times
Distributed 20 Power points
Visited the Geoforge Parks
Vampiric Powers used 50 times
Distributed 10 Power points
Completed a level without raising an alarm
Killed 50 unaware opponents
You met Blooming in the museum catacombs.
Killed 50 opponents
Completed the Tutorial
Found the (not all that) secret announcement for a future project in the Tutorial.
You received your first blood – the first time is always something special …
Pursued Samantha.
Finished a challenge.
Finished a challenge in less than three minutes.
Finished a challenge without draining anyone.
Finished the Harding Museum in less than 20 minutes.
Died during the Tutorial … that IS bad.
Experienced the game in Virtual Reality.