The Sinking City 2 Platinum Guide — Safe Code

The Sinking City 2 platinum is a two-run job with one long grind at the end. 100% Guides puts it at about 20 hours and a 3/10 difficulty, and the XboxAchievements roadmap agrees on the difficulty while estimating roughly 8 hours to 1,000G if you optimise. Nothing is gated behind difficulty, so both sources recommend the easiest setting.

Platinum roadmap at a glance

Step one is a full clear on any difficulty: finish the story while collecting all ten radios, all thirteen Emergency Relief Crates and their Activator Pens, the weapons and as much Dream Essence as you can find. Step two is the Ex Oblivione New Game Plus run, where you pick up the eight new Codex documents. Step three is finishing the Talent tree, which needs more Dream Essence than two runs provide.

Target	Requirement	Notes
All trophies but two	One full playthrough	Everything except the two gold trophies
From Oblivion	8 Ex Oblivione documents	New Game Plus only, in a single run
What Dreams Are Made Of	Every Talent, about 60 Dream Essence	Needs two full runs plus a partial third
4 shop Talents	800 Eldritch Points	Bought from Eldritch Rewards in the Extras menu

Safe codes and puzzle solutions you will need

The trophy-linked safes and locks are the ones to write down before you start. The Apartment 5 safe uses 1908, the Devil's Reef Hotel safe uses 2137, the hospital storage room lock uses 1308, and the church watergate lever uses 1672. The church obelisk puzzle is symbol-based and runs Snake, X, Arrowhead and U from top to bottom.

The remaining investigation answers are the hospital brains console at 13, 05, 36, the Fish Market wooden lock at 1, 4, 9, 16 and the Ezekiel locker at Lighthouse, Rope, Starfish, Octopus. Each one is worth a 40-point investigation trophy, and each is easier with the answer in hand.

• Apartment 5 wall safe: 1908.
• Devil's Reef Hotel safe: 2137.
• Hospital storage room lock: 1308.
• Church watergate lever: 1672.

How long it takes and what to do first

Start by playing normally and sweeping each area before you leave it, because nothing carries over to the next run and a missed radio means collecting the whole set again. Buy the four Extras Talents as soon as you have 800 Eldritch Points, then use the New Game Plus run to grab the eight Ex Oblivione documents and a second batch of Dream Essence.

The final Talent purchases are the last thing you will do, and they unlock the all-trophies award. The trophy guide lists the full 23-trophy set, and the walkthrough gives the chapter order so you know when each safe becomes reachable.