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