PS5
This roadmap covers the 2023 Dead Space remake, not the PS3 list. Its platinum combines Ishimura exploration, New Game+, an alternative ending and an Impossible-mode run. Trying to combine every condition on a first attempt makes the route fragile: give each playthrough a clear role instead. Keep a save before the point of no return and protect your visit to the USM Valor. For One Gun, the decisive condition is the weapon you fire, not merely what you carry.
Base-game trophy roadmap. Expansions and additional trophy groups are separate from the platinum.
- Required difficulty: Impossible mode is required for Untouchable.
- Missable trophies: Protect the USM Valor visit and finish ship cleanup before the point of no return.
- Online: The platinum can be earned offline in single-player.
Use the first run for the ship and weapons
Explore the Ishimura while tracking logs, schematics and upgrades as clearance levels open. If using the full arsenal, earn individual-weapon kill trophies during this run. Alternatively, dedicate it to the Plasma Cutter, but leave other weapon counters for another playthrough. Decide beforehand: changing the objective midway creates work you must repeat.
- Give the first run a precise objective: full arsenal or Plasma Cutter only.
Protect the USM Valor and final checkpoint
On reaching the USM Valor, prioritise Front Toward Enemy before leaving. Later, retain a separate save before the final departure in Chapter Eleven. Use it to audit side missions and remaining Ishimura items. Do not overwrite that file with a save beyond the boundary: tram access does not mean you can return after every event.
- Finish the Valor shooting gallery and retain the pre-departure save.
Audit side missions and power nodes
Whole Again, Final Regeneration and Full Clearance follow routes beyond the main story. Check that they are completed, not merely started. For Maxed Out, allocate nodes after checking missing circuits and weapon upgrades. New Game+ lets you continue this project: avoid blindly buying nodes while an installable upgrade still needs to be found.
- Finish the three side missions and compare every upgrade circuit.
Collect fragments in New Game+
The alternative ending is tied to Marker Fragments available in New Game+. Keep a dedicated list separate from audio logs and schematics, checking each pickup before leaving its area. After collecting them, complete the activation step before the finale; merely holding them should not be confused with preparing the alternative ending.
- Collect and activate Marker Fragments before finishing New Game+.
Avoid accidental shots during One Gun
During the run assigned to One Gun, fire only the Plasma Cutter. Keeping other weapons in storage is a practical precaution against accidental selections during panic. Build damage, capacity and suit upgrades around that choice. Do not simultaneously attempt kill trophies for the Pulse Rifle, Flamethrower or other weapons: those belong in a different run.
- Leave other weapons in storage during the One Gun playthrough.
Attempt Impossible after learning the encounters
Impossible imposes stricter saving and death consequences than a normal playthrough. Attempt it after learning environmental sequences, escape routes and ammunition use. Target weak points, use Stasis to prevent unnecessary damage and buy missing resources before long sections. If you die, immediately check the difficulty state: continuing a converted run does not earn Untouchable.
- Verify the save genuinely remains on Impossible through completion.
Trophies to watch
Untouchable
Complete the game in Impossible Mode.
Check the save’s difficulty after any incident: a file converted to Hard does not satisfy Impossible.
One Gun
Beat the game using only the Plasma Cutter.
Do not fire other weapons; storage reduces the chance of selecting one accidentally.
Front Toward Enemy
Survive the Shooting Gallery.
Finish this activity during the Valor visit before access is lost.
Reunion
See the alternative ending on any difficulty mode.
Plan fragments and their activation in New Game+, separately from other collections.
Frequently asked questions
Is this the PS3 version’s guide?
No. The 2023 remake has new requirements and content, including Marker Fragments and an alternative ending. Use the PS5 list.
Can I combine One Gun with New Game+?
Yes. A run with an already upgraded Plasma Cutter can cover both, provided you do not fire another weapon during that playthrough.
Can I return everywhere after the ending?
There is no universal post-ending free-roam cleanup. Keep the pre-point-of-no-return save and separately protect the Valor visit.
Sources
Trophy lists
Buying the game
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