Dead Space 3 Cheats for the PS3

Unlockables

New Game Mode Unlockables

Unlockables from New Game + mode after beating the game once.

• Devil Horns - Beat Classic mode in New Game+
• Mega Resources Deposit - Beat Pure Survival mode in New Game+
• Mk-II Overclock Parts Set - Beat Pure Survival mode in New Game+
• Retro Mode - Beat Hardcore mode in New Game+

Unloackable items from other game save files

Have a game save from Dead Space 2 and Mass Effect 3 to unlock these items

• N7 Armor Suit - Have a Mass Effect 3 save file.
• Planet Cracker Plasma Cutter - Have a Dead Space 2 save file.

Trophies

For a complete Trophy Guide, check out PlayStation LifeStyle's Dead Space 3 Trophy Guide.

Awakened DLC:

Pure Lunacy - Complete Dead Space™ 3 Awakened in Pure Survival Mode 
Just the Tip  - Awakened: Craft a Weapon using a MK-II Weapon Tip. 
Heaven Can Wait - Awakened: Stasis your Co-Op Partner when he is downed to slow his bleed out timer. 
Supercharger - Awakened: Finish charging the reactor in under 90 seconds. 
Bad Moon Rising - Complete Dead Space™ 3 Awakened. 
Heretic - Awakened: Kill the Unitologist Cult Leader. 
True Believer - Awakened: Allow the Unitologist Cult Leader to survive. 
Get to the Chopper! - Awakened: Escape from Tau Volantis to the Terra Nova.

Main Game:

Brave New World - Obtain All Trophies (PS3 Only)
Get On My Level - Complete the game on any difficulty setting
The Explorer - Complete all optional missions
Aren't You Thankful? - Complete the game on Hardcore Mode
Epic Tier 4 Engineer - Complete the game in Classic Mode
Survivalist - Complete the game in Pure Survival Mode
Gun Collector - Collect all Weapon Parts
The Professor - Collect all Artifacts
The Librarian - Collect all Logs
The Armorer - Collect all Circuits
There's Always Peng! - Find Peng
My Buddy - Retrieve resources from a Scavenger Bot at a Bench
Metal Detector - Successfully deploy Scavenger Bots to 15 Resource areas
Strapped - Craft a Weapon
Circuit's Edge - Add a circuit to a weapon
EMT - Craft a Large Med Pack
Full House - Craft a weapon with 2 tools, 2 tips, and 2 attachments with all circuit slots filled
RIG Master - Fully upgrade your RIG
Master Plan - Create a blueprint that needs at least 2000 resources worth of parts and circuits to build
From the Jaws - Save your Co-op partner from an execution by killing the attacker
Share and Share Alike - Use the RIG to give an item to your Co-op partner
Medic! - Revive your co-op partner 10 times
Ghosts of the past - Face all of Carver's demons by completing all co-op only optional missions
Architect - Share a blueprint with your co-op partner
Axes High - Kill 30 enemies using Fodder axes
Payback - Kill a soldier by TK'ing a grenade or rocket back at them
Go for the limbs! - Dismember 500 limbs from living enemies
And then we doubled it! - Dismember 1000 limbs from living enemies
Slow Mo - Kill 50 enemies while they are in stasis
Blast Corps - Kill 30 enemies with explosion damage
Shootbang - Kill 30 soldiers with head shots
Empty Chamber - Kill 30 enemies using melee strikes or a melee weapon part
Dropping Acid - Dissolve 50 enemies with acid
Electric Lawnmower - Kill 30 enemies using an electrified Ripper blade
Overpowered Healing - Use quick heal to heal yourself 20 times

Secret Achievements / Trophies (contain story spoilers)

Stranger in a Strange Land - Complete the prologue
Space Odyssey - Survive your first spacewalk
Critical Mass - Recover the shuttle
Snow Crash - Reach Tau Volantis
Intestinal Fortitude - Defeat the Hive Mind
Hydra - Kill the snowbeast
Together as One - Reassemble Rosetta
Infernal Machine - Reach the Alien Machine
Shoot for the Moon - Defeat the Moon
Under a Buck - Shoot the deer head trophy in the Admiral's Quarters
Space Ace - Shoot at least 70 targets during the ride to Tau Volantis
Hungry - Reach the pump room of the Waystation without alerting any Feeders
Drill Sergeant - Complete the Drill Room without taking any damage
Weedkiller - Kill 5 Cysts in the Biology Building with a single poison gas cloud
Aliens - Collect all Alien Artifacts
Close Encounter - Kill 10 alien Necromorphs

For a guide to unlocking everything there is to see, check out our Dead Space 3 Unlock Everything FAQ.
If you're having trouble with a specific Necromorph, our Dead Space 3 Necromorph FAQ will help.
For a road map to 100% in the game, check out our Dead Space 3 100% Completion FAQ.
For a guide to the alternative modes, check out our Dead Space 3 New Game+ Modes FAQ.
Need some tips for crafting the best weapons? Our Dead Space 3 Weapon Crafting FAQ and Recipes will help.