Mission Impossible - 50 points
Complete the game on Zealot setting
Romper Stomper - 25 points
Stomp 10 Containers
Vacuum Cleaner - 30 points
Decompress 20 Necromorphs without getting sucked out yourself
Made Us Whole - 10 points
Complete the game on any difficulty setting
Frozen in Time - 10 points
Kill 50 Necromorphs while they are in Stasis (single player only)
First Aid - 10 points
Use Quick Heal ten times (single player only)
Epic Dismemberment - 50 points
Dismember 2,500 Necromorph Limbs (single player only)
...And Stay Down - 10 points
Kill 25 crawling enemies with Stomp (single player only)
Think Fast - 15 points
Kill 30 Necromorphs with Kinesis objects
The Nanny - 10 points
Kill 30 Crawlers without detonating them
C-Section - 10 points
Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up
Going for Distance - 20 points
Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface
Taste of your own Medicine - 20 points
TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface
It's a Trap! - 20 points
Kill 20 enemies with Detonator Mines in a deployed state
Necro Flambé - 10 points
Kill 50 enemies using the Flamethrower
Peek a Boo! - 20 points
Kill a Stalker with the Seeker Rifle while in Zoom Mode
Brute Juke - 10 points
Kill a Brute without taking damage
Shoot the Limbs! - 10 points
Dismember 25 Necromorph Limbs (single player only)
Bouncing Betty - 10 points
Kill a Cyst by catching its Mine and throwing it back
Skewered in Space - 15 points
Impale an enemy into a Decompression Window to cause it to blow out
Hard to the Core - 50 points
Complete the game on Hard Core setting
Clean Cut - 10 points
Sever all three tentacles of a Lurker with one Line Gun Primary Fire shot (single player only)
Lawnmower Man - 10 points
Kill 4 enemies with the same Ripper blade
Fully Loaded - 50 points
Simultaneously have four completely upgraded weapons
The Sampler Platter - 20 points
Kill a Necromorph with every Weapon in the game (single player only)
Lightspeed de Milo - 10 points
Dismember the Lightspeed Boy Statue
Looking good - 10 points
Purchase the Advanced Suit
Fully Outfitted - 30 points
Upgrade your RIG and Stasis completely
Picking favorites - 30 points
Upgrade 1 Weapon completely
The Engineer - 10 points
Collect 10 Schematics
My Boom Stick - 20 points
Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)
Shock Therapy - 10 points
Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only)
Collect Peng - 20 points
Find the Peng treasure
The Librarian - 10 points
Collect 100 logs
The Electrician - 10 points
Collect 10 Semiconductors
Secret Achievements
The Fugitive - 50 points
Escape the Facility
Cross your Heart, Hope to Die - 30 points
Survive the Eye Poke Machine
The Final Sacrifice - 50 points
Destroy the Marker
Clever Girls - 10 points
Survive your first encounter with Stalkers
Torment Me No More - 20 points
Kill the Tormenter
The Graduate - 20 points
Win the fight at the School
Patient on the Loose - 15 points
Get your first Suit
Derailed - 20 points
Survive the Train Sequence
One Small Step - 10 points
Get through the first Zero-G area
Hornet's Nest - 30 points
Destroy the Tripod Nest
Operation! - 15 points
Snare the Shard with the Ishimura
Knock Knock - 25 points
Complete the Drill Ride
Elevator Action - 15 points
Knock off every Tripod during the Elevator Sequence
Shut Down - 10 points
Defeat the AI
Powered Up - 15 points
Complete the Solar Array Puzzle