Here is the full list of all 113 Silver Bullet: Prometheus achievements.
No hit from boss
Mission Complete
Evaded all headbutts
No portals were removed
Cleared without using grenade
Nobody was killed
No damage from Boss's bomb
Zombies killed by blade slash
Cleared stage without shooting
Out of bullet
This robot's weak point is under the body
Cross-aim over 50 times
Hide in barrel over 100 times
No damage on artifact
Cleared stage without guide
Dash Kick over 100 times
Case Closed!
Grenade exploded inside the Leviathan
Got every items on stage
Killed all zombies on stage
Stage cleared in 75 second
Captain killed by explosion
Climbed over the wall
No damage on doctor
Destroy the Boss only
Eliminated all portals
Opened all doors on the top
Hit on choper's tail
Rescued all survivors
No hit from enemies
Cleared without resurrect
Boss grown over 10 times
Got Empty Barrel
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
Evaded sniper's shot
Used grenade over 100 times
Back hit over 50 times
Drop to death 10 times
Killed survivors over 10 times
Reached max level
Maximun damage upgrade
Maximun accuracy upgrade
Maximun armor upgrade
Maximun speed upgrade
All maximun upgrade
Max bullet over 2000
Resurrect continuously over 5 times
Started first abyss dungeon
Entered Abyss 100 times
Killed abyss boss 10 times
Kill enemy by explosion 100 times