Decompress 20 Necromorphs without getting sucked out yourself
Unlocked: 05 Apr 2012 12:24:32
Complete the game on Zealot setting
Unlocked: 05 Apr 2012 11:32:41
Kill a Necromorph with every Weapon in the game (single player only).
Unlocked: 04 Apr 2012 13:41:06
Dismember 2,500 Necromorph Limbs (single player only)
Unlocked: 04 Apr 2012 13:35:16
Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only)
Unlocked: 04 Apr 2012 12:16:25
C-Section
10Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up
Unlocked: 04 Apr 2012 12:12:36
Collect Peng
20Find the Peng treasure
Unlocked: 04 Apr 2012 11:36:17
Upgrade your RIG and Stasis completely
Unlocked: 04 Apr 2012 11:31:46
Knock off every Tripod during the Elevator Sequence
Unlocked: 04 Apr 2012 11:20:37
It's a Trap!
20Kill 20 enemies with Detonator Mines in a deployed state
Unlocked: 04 Apr 2012 10:59:27
The Nanny
10Kill 30 Crawlers without detonating them
Unlocked: 04 Apr 2012 10:53:19
Kill 4 enemies with the same Ripper blade
Unlocked: 03 Apr 2012 20:19:26
Clean Cut
10Sever all three tentacles of a Lurker with one Line Gun Primary Fire shot (single player only)
Unlocked: 03 Apr 2012 20:17:21
Peek a Boo!
20Kill a Stalker with the Seeker Rifle while in Zoom Mode
Unlocked: 03 Apr 2012 19:57:14
Impale an enemy into a Decompression Window to cause it to blow out
Unlocked: 03 Apr 2012 19:29:31
Dismember the Lightspeed Boy Statue
Unlocked: 03 Apr 2012 19:27:16
Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)
Unlocked: 03 Apr 2012 19:24:03
Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface
Unlocked: 03 Apr 2012 19:00:35
Complete the game on any difficulty setting
Unlocked: 03 Apr 2012 14:15:46
Escape the Facility
Unlocked: 03 Apr 2012 14:15:45
Destroy the Marker
Unlocked: 03 Apr 2012 14:12:40
Survive the Eye Poke Machine
Unlocked: 03 Apr 2012 13:16:15
Think Fast
15Kill 30 Necromorphs with Kinesis objects
Unlocked: 03 Apr 2012 13:04:43
Complete the Drill Ride
Unlocked: 03 Apr 2012 12:32:43
Necro Flambé
10Kill 50 enemies using the Flamethrower
Unlocked: 03 Apr 2012 12:27:28
Looking good
10Purchase the Advanced Suit
Unlocked: 03 Apr 2012 12:20:55
TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface
Unlocked: 03 Apr 2012 12:11:38
Collect 100 logs
Unlocked: 03 Apr 2012 11:52:12
Snare the Shard with the Ishimura
Unlocked: 03 Apr 2012 11:52:09
Kill 25 crawling enemies with Stomp (single player only)
Unlocked: 03 Apr 2012 11:09:57
Destroy the Tripod Nest
Unlocked: 03 Apr 2012 10:25:39
Collect 10 Semiconductors
Unlocked: 02 Apr 2012 21:28:59
Upgrade 1 Weapon completely
Unlocked: 02 Apr 2012 21:05:19
Kill 50 Necromorphs while they are in Stasis (single player only)
Unlocked: 02 Apr 2012 20:50:20
Complete the Solar Array Puzzle
Unlocked: 02 Apr 2012 20:45:58
Defeat the AI
Unlocked: 02 Apr 2012 20:32:41
The Engineer
10Collect 10 Schematics
Unlocked: 02 Apr 2012 19:57:44
Brute Juke
10Kill a Brute without taking damage
Unlocked: 02 Apr 2012 19:48:22
Win the fight at the School
Unlocked: 02 Apr 2012 19:39:41
Kill a Cyst by catching its Mine and throwing it back
Unlocked: 02 Apr 2012 19:03:22
Kill the Tormenter
Unlocked: 01 Apr 2012 12:31:18
Survive your first encounter with Stalkers
Unlocked: 01 Apr 2012 12:04:17
Stomp 10 Containers
Unlocked: 01 Apr 2012 11:12:26
Get through the first Zero-G area
Unlocked: 01 Apr 2012 11:11:56
Survive the Train Sequence
Unlocked: 31 Mar 2012 23:40:24
First Aid
10Use Quick Heal ten times (single player only)
Unlocked: 31 Mar 2012 23:31:46
Get your first Suit
Unlocked: 31 Mar 2012 23:09:24
Dismember 25 Necromorph Limbs (single player only)
Unlocked: 31 Mar 2012 23:00:09
Fully Loaded
50Simultaneously have four completely upgraded weapons
Complete the game on Hard Core setting