Complete the game on Zealot setting
Kill 20 enemies with Detonator Mines in a deployed state
Kill 50 enemies using the Flamethrower
Dismember 2,500 Necromorph Limbs (single player only)
Kill 30 Necromorphs with Kinesis objects
Simultaneously have four completely upgraded weapons
Decompress 20 Necromorphs without getting sucked out yourself
Kill 30 Crawlers without detonating them
Complete the game on any difficulty setting
Purchase the Advanced Suit
Collect 100 logs
Upgrade your RIG and Stasis completely
Collect 10 Semiconductors
Upgrade 1 Weapon completely
Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up
Kill a Necromorph with every Weapon in the game (single player only).
Collect 10 Schematics
Find the Peng treasure
Kill a Brute without taking damage
Kill 50 Necromorphs while they are in Stasis (single player only)
Kill 25 crawling enemies with Stomp (single player only)
Kill a Stalker with the Seeker Rifle while in Zoom Mode
Kill a Cyst by catching its Mine and throwing it back
Kill 4 enemies with the same Ripper blade
Sever all three tentacles of a Lurker with one Line Gun Primary Fire shot (single player only)
Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)
Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only)
Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface
TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface
Impale an enemy into a Decompression Window to cause it to blow out
Dismember the Lightspeed Boy Statue
Use Quick Heal ten times (single player only)
Stomp 10 Containers
Dismember 25 Necromorph Limbs (single player only)
Earn all Trophies in Dead Space 2
Complete the game on Hard Core setting
Severed: Complete on Zealot difficulty
Severed: Kill 16 or more enemies in the final last stand combat sequence
Severed: Find the Peng treasure in Severed
Severed: Defend the quarry platform until the door unlocks
Severed: In the grinder room, cause an enemy to die in the grinders
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