Continue playing to unlock this secret achievement.
Earn ten experience rewards for completing areas without raising the alarm.
Reach the destroyed Sanctuary in the destroyed apartment complex.
Distribute 20 Power points amongst the powers as desired.
Distribute 10 Power points amongst the powers as desired.
Meet Blooming in the museum catacombs.
Find and use 7 PDAs during play
Use Vampiric Powers 50 times.
Complete the tutorial.
Kill 50 enemies who were neither suspicious nor hostile.
Use Shadow Leap 50 times
Take out or Feed on 50 enemies.
Subdue and then Feed on 5 enemies.
Feed on an enemy.
Complete a level without tripping a single alarm.
Learn all the powers and their upgrades.
