Unlockable Devil's Horns (The Foam Finger)
To unlock the Devil's Horns weapon, you just need to finish the game while in "Classic Mode".
Unlock Retro Mode
To unlock Retro mode, you must complete the game while on "Hardcore Mode"
Save and Quit Item Exploit
When you activate the "Save and Quit" feature, the game will save a record of the items currently in your inventory and in the safe. If you do so after clearing out a room (but before triggering the next checkpoint), you can then load from your last auto-save and you will be able to clear the same room again, even though the available items will have already made it to your inventory. In this manner, you can collect those same items repeatedly. This trick can be exploited as often as you like in certain locations throughout the game, including near the first usable bench in Chapter 3, and then in the same room later in Chapter 4.
Item Duplication (Cooperative Mode)
You can perform this cheat anywhere in the game, but it works best if you put it to use near a checkpoint and bench. You'll need to be playing with a friend, preferably one who is equipped with a headset so that you can communicate as needed. Start by giving your friend the items you wish to duplicate. After the trade is completed, exit out to the main menu and then immediately have the friend who received your loot save and quit from the pause menu. The trick only works if you follow that precise order, and quickly. If you did it properly, both players should now have the desired items in their inventory.
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.
For a complete Trophy Guide, check out PlayStation LifeStyle's Dead Space 3 Trophy Guide.
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.
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.