| icon | info | gamerscore |
|---|---|---|
| My Boom Stick Kill 6 enemies at once with Line Gun's Alt-Fire (single player only) | 20 | |
| Lawnmower Man Kill 4 enemies with the same Ripper blade | 10 | |
| C-Section Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up | 10 | |
| Skewered in Space Impale an enemy into a Decompression Window to cause it to blow out | 15 | |
| Shock Therapy Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only) | 10 | |
| Made Us Whole Complete the game on any difficulty setting | 10 | |
| The Fugitive Escape the Facility | 50 | |
| The Final Sacrifice Destroy the Marker | 50 | |
| Cross your Heart, Hope to Die Survive the Eye Poke Machine | 30 | |
| Peek a Boo! Kill a Stalker with the Seeker Rifle while in Zoom Mode | 20 | |
| Knock Knock Complete the Drill Ride | 25 | |
| Looking good Purchase the Advanced Suit | 10 | |
| The Nanny Kill 30 Crawlers without detonating them | 10 | |
| Operation! Snare the Shard with the Ishimura | 15 | |
| ...And Stay Down Kill 25 crawling enemies with Stomp (single player only) | 10 | |
| Frozen in Time Kill 50 Necromorphs while they are in Stasis (single player only) | 10 | |
| The Librarian Collect 100 logs | 10 | |
| Fully Outfitted Upgrade your RIG and Stasis completely | 30 | |
| Hornet's Nest Destroy the Tripod Nest | 30 | |
| The Electrician Collect 10 Semiconductors | 10 | |
| Powered Up Complete the Solar Array Puzzle | 15 | |
| Shut Down Defeat the AI | 10 | |
| Collect Peng Find the Peng treasure | 20 | |
| Elevator Action Knock off every Tripod during the Elevator Sequence | 15 | |
| Picking favorites Upgrade 1 Weapon completely | 30 | |
| Brute Juke Kill a Brute without taking damage | 10 | |
| The Graduate Win the fight at the School | 20 | |
| Think Fast Kill 30 Necromorphs with Kinesis objects | 15 | |
| The Engineer Collect 10 Schematics | 10 | |
| Torment Me No More Kill the Tormenter | 20 | |
| Clever Girls Survive your first encounter with Stalkers | 10 | |
| One Small Step Get through the first Zero-G area | 10 | |
| First Aid Use Quick Heal ten times (single player only) | 10 | |
| Derailed Survive the Train Sequence | 20 | |
| Romper Stomper Stomp 10 Containers | 25 | |
| Patient on the Loose Get your first Suit | 15 | |
| Shoot the Limbs! Dismember 25 Necromorph Limbs (single player only) | 10 | |
| Taste of your own Medicine TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface | 20 | |
| Necro Flambé Kill 50 enemies using the Flamethrower | 10 | |
| Lightspeed de Milo Dismember the Lightspeed Boy Statue | 10 | |
| Bouncing Betty Kill a Cyst by catching its Mine and throwing it back | 10 | |
| The Sampler Platter Kill a Necromorph with every Weapon in the game (single player only). | 20 | |
| Clean Cut Sever all three tentacles of a Lurker with one Line Gun Primary Fire shot (single player only) | 10 | |
| Hard to the Core Complete the game on Hard Core setting | 50 | |
| Mission Impossible Complete the game on Zealot setting | 50 | |
| The Veteran Severed: Complete on Zealot difficulty | 50 | |
| The Sacrifice Severed: Complete Chapter 2 | 50 | |
| Remember the Alamo Severed: Kill 16 or more enemies in the final last stand combat sequence | 20 | |
| Peng Me Again Severed: Find the Peng treasure in Severed | 20 | |
| The Betrayal Severed: Complete Chapter 1 | 50 | |
| Ship Shape Severed: Take out the gunship within 30 seconds | 20 | |
| Grind House Severed: In the grinder room, cause an enemy to die in the grinders | 20 | |
| King of the Hill Severed: Defend the quarry platform until the door unlocks | 20 | |
| Vacuum Cleaner Decompress 20 Necromorphs without getting sucked out yourself | 30 | |
| Fully Loaded Simultaneously have four completely upgraded weapons | 50 | |
| Epic Dismemberment Dismember 2,500 Necromorph Limbs (single player only) | 50 | |
| It's a Trap! Kill 20 enemies with Detonator Mines in a deployed state | 20 | |
| Going for Distance Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface | 20 |
