Story & Progression
Every story-beat trophy across the Otherworld and St. Amelia, plus New Game Plus and the sub-4-hour speedrun. All are mandatory except the timed run — follow the main missions and they pop in order.

Welcome To St. Amelia
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Escape the Otherworld and return to the town square.

Welcome To St. Amelia
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Story: escape the opening Otherworld nightmare and return to the town square of St. Amelia. This is the intro — completely unmissable.
Tip
Just follow the opening sequence; it eases you into the movement and hiding basics.

Resignation
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At the Shorefront Family Clinic, show Zoe you understand.

Resignation
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Story beat: at the Shorefront Family Clinic, choose the option that shows Zoe you understand her. It's a narrative moment on the critical path.
Tip
No wrong turn here for the plat — it's story-mandatory; make the empathetic choice when prompted.

A Long Night Ahead
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Report to Dr. Glenn at the Medical Centre.

A Long Night Ahead
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Story: report to Dr. Glenn at the Medical Centre — reaching and speaking to him advances the chapter.
Tip
Follow the objective marker/notes; it flows straight from the town-square section.

The Patient
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Tend to the Patient.

The Patient
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Story: complete the The Patient mission by tending to the Patient. Mandatory progression.
Tip
This mission also gates Save It For The Patients (Stealth & Survival) — if you're going for that, don't use healing items here.

Many Into One
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Accept the transfusion in the Alternate Medical Centre.

Many Into One
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Story: in the Alternate Medical Centre, accept the transfusion when offered. Progresses the Otherworld arc.
Tip
Story choice on the main path — accept it to continue.

Key To The Castle
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Unlock the path to CEG Tower.

Key To The Castle
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Story: solve your way through to unlock the path to CEG Tower. Tied to the mid-game puzzle stretch.
Tip
If a puzzle stumps you, a speedrun/puzzle-solutions walkthrough has every solution — but they're all fair.

Find Yourself
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Make it back to the office on the 10th Floor.

Find Yourself
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Story: make it back to the office on the 10th Floor of CEG Tower. Late-game progression beat.
Tip
Straightforward once the tower opens up; keep pushing the objective.

Can't Change Things
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Exhaust the options in the Alternate Facility.

Can't Change Things
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Story: exhaust the dialogue/interaction options in the Alternate Facility — work through everything the section offers to advance.
Tip
Interact with every prompt in the room/area before leaving so the story flag trips.

Eraser
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Defeat the Weight.

Eraser
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Story boss: defeat the Weight. This is the mandatory finale-area boss fight that precedes the ending.
Tip
Come stocked; how the run resolves after it depends on your kills-vs-Discoveries count (see All Endings).

Reliving A Nightmare
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Complete New Game Plus (any difficulty).

Reliving A Nightmare
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Complete a full New Game Plus run (any difficulty). Finish the game once to unlock NG+, then play it through to the end.
Tip
You need NG+ anyway for the Dog and Sci-fi joke endings — knock those (and the sub-4h speedrun) out on this run.

Fleeting Visit
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Finish the game in under 4 hours.

Fleeting Visit
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Finish the game in under 4 hours. Easiest on New Game Plus with a known route: skip optional exploration and collectibles, and go straight through the missions with the puzzle solutions ready.
Tip
The timer is generous for a focused run. Pair it with your NG+ ending mop-up so you're not doing an extra playthrough.