Complete the game on Hard Core setting
Unlocked: 20 Feb 2011 03:54 pm
Decompress 20 Necromorphs without getting sucked out yourself
Unlocked: 9 Feb 2011 11:14 pm
Necro Flambé
10Kill 50 enemies using the Flamethrower
Unlocked: 9 Feb 2011 10:35 pm
Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)
Unlocked: 9 Feb 2011 10:34 pm
Kill a Necromorph with every Weapon in the game (single player only).
Unlocked: 9 Feb 2011 10:32 pm
Clean Cut
10Sever all three tentacles of a Lurker with one Line Gun Primary Fire shot (single player only)
Unlocked: 9 Feb 2011 10:31 pm
Peek a Boo!
20Kill a Stalker with the Seeker Rifle while in Zoom Mode
Unlocked: 9 Feb 2011 10:17 pm
It's a Trap!
20Kill 20 enemies with Detonator Mines in a deployed state
Unlocked: 9 Feb 2011 10:11 pm
Kill 4 enemies with the same Ripper blade
Unlocked: 9 Feb 2011 08:23 pm
C-Section
10Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up
Unlocked: 9 Feb 2011 08:12 pm
Think Fast
15Kill 30 Necromorphs with Kinesis objects
Unlocked: 9 Feb 2011 07:58 pm
Complete the game on Zealot setting
Unlocked: 9 Feb 2011 06:37 pm
Dismember 2,500 Necromorph Limbs (single player only)
Unlocked: 7 Feb 2011 10:57 am
Impale an enemy into a Decompression Window to cause it to blow out
Unlocked: 7 Feb 2011 10:47 am
Fully Loaded
50Simultaneously have four completely upgraded weapons
Unlocked: 6 Feb 2011 04:31 pm
The Nanny
10Kill 30 Crawlers without detonating them
Unlocked: 6 Feb 2011 04:00 pm
Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only)
Unlocked: 6 Feb 2011 12:10 am
The Engineer
10Collect 10 Schematics
Unlocked: 4 Feb 2011 09:00 pm
Kill 50 Necromorphs while they are in Stasis (single player only)
Unlocked: 3 Feb 2011 10:47 pm
Upgrade 1 Weapon completely
Unlocked: 3 Feb 2011 10:26 pm
Looking good
10Purchase the Advanced Suit
Unlocked: 3 Feb 2011 05:20 pm
Escape the Facility
Unlocked: 3 Feb 2011 03:31 pm
Complete the game on any difficulty setting
Unlocked: 3 Feb 2011 03:31 pm
Destroy the Marker
Unlocked: 3 Feb 2011 03:28 pm
Survive the Eye Poke Machine
Unlocked: 3 Feb 2011 03:05 pm
Complete the Drill Ride
Unlocked: 3 Feb 2011 02:19 pm
Collect 100 logs
Unlocked: 3 Feb 2011 02:01 pm
Upgrade your RIG and Stasis completely
Unlocked: 3 Feb 2011 01:49 pm
Kill a Cyst by catching its Mine and throwing it back
Unlocked: 3 Feb 2011 01:17 pm
Snare the Shard with the Ishimura
Unlocked: 3 Feb 2011 01:10 pm
Kill 25 crawling enemies with Stomp (single player only)
Unlocked: 3 Feb 2011 12:45 pm
Collect 10 Semiconductors
Unlocked: 3 Feb 2011 12:22 pm
Destroy the Tripod Nest
Unlocked: 3 Feb 2011 12:12 pm
Complete the Solar Array Puzzle
Unlocked: 3 Feb 2011 10:13 am
Defeat the AI
Unlocked: 2 Feb 2011 10:22 pm
Collect Peng
20Find the Peng treasure
Unlocked: 2 Feb 2011 10:15 pm
Knock off every Tripod during the Elevator Sequence
Unlocked: 2 Feb 2011 09:53 pm
Brute Juke
10Kill a Brute without taking damage
Unlocked: 2 Feb 2011 09:04 pm
Win the fight at the School
Unlocked: 2 Feb 2011 07:43 pm
Dismember the Lightspeed Boy Statue
Unlocked: 2 Feb 2011 07:25 pm
Kill the Tormenter
Unlocked: 2 Feb 2011 06:50 pm
Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface
Unlocked: 2 Feb 2011 06:23 pm
Survive your first encounter with Stalkers
Unlocked: 2 Feb 2011 05:17 pm
TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface
Unlocked: 2 Feb 2011 05:06 pm
Get through the first Zero-G area
Unlocked: 2 Feb 2011 03:54 pm
Stomp 10 Containers
Unlocked: 2 Feb 2011 03:46 pm
Survive the Train Sequence
Unlocked: 2 Feb 2011 03:35 pm
First Aid
10Use Quick Heal ten times (single player only)
Unlocked: 2 Feb 2011 03:29 pm
Get your first Suit
Unlocked: 2 Feb 2011 03:10 pm
Dismember 25 Necromorph Limbs (single player only)
Unlocked: 2 Feb 2011 02:51 pm
Severed: Complete Chapter 2
Unlocked: 2 Mar 2011 02:17 pm
The Veteran
50Severed: Complete on Zealot difficulty
Unlocked: 2 Mar 2011 02:17 pm
Severed: Kill 16 or more enemies in the final last stand combat sequence
Unlocked: 2 Mar 2011 02:10 pm
Severed: Find the Peng treasure in Severed
Unlocked: 2 Mar 2011 01:59 pm
Severed: Complete Chapter 1
Unlocked: 2 Mar 2011 01:30 pm
Severed: Take out the gunship within 30 seconds
Unlocked: 2 Mar 2011 01:27 pm
Severed: Defend the quarry platform until the door unlocks
Unlocked: 2 Mar 2011 01:16 pm
Grind House
20Severed: In the grinder room, cause an enemy to die in the grinders
Unlocked: 2 Mar 2011 01:10 pm