Here is the full list of all 113 Silver Bullet: Prometheus achievements.
Got Empty Barrel
Mission Complete
Used grenade over 100 times
Boss grown over 10 times
Nobody was killed
Cleared without resurrect
No hit from enemies
Rescued all survivors
Eliminated all portals
Opened all doors on the top
Hide in barrel over 100 times
No hit from boss
Cleared without using grenade
Resurrect continuously over 5 times
Drop to death 10 times
Killed survivors over 10 times
No portals were removed
Destroy the Boss only
Evaded sniper's shot
No damage from Boss's bomb
Cross-aim over 50 times
No damage on doctor
Climbed over the wall
Back hit over 50 times
Captain killed by explosion
Stage cleared in 75 second
This robot's weak point is under the body
Zombies killed by blade slash
Dash Kick over 100 times
Killed all zombies on stage
Cleared stage without guide
No damage on artifact
Out of bullet
Case Closed!
Grenade exploded inside the Leviathan
Got every items on stage
Cleared stage without shooting
Evaded all headbutts
Hit on choper's tail
No Land Mine Exploded
Never seen by drone
Enemy hit by Laser
No hit by laser trap
Found Seth at once
Chase Seth in narrow passage
Boss escaped from silo
Fed Leviathan with big demon
Knock-out enemy over 500 times
Reached max level
Maximun damage upgrade
Maximun accuracy upgrade
Maximun armor upgrade
Maximun speed upgrade
All maximun upgrade
Max bullet over 2000
Started first abyss dungeon
Entered Abyss 100 times
Killed abyss boss 10 times
Kill enemy by explosion 100 times