Identifying doppelgangers

This is the job. Something walks in wearing a real person — face, voice, mannerisms, biography — and you have a scanner, a database and your own attention. The 29 July patch removed the patience mechanic, so you now have one more thing: time.

Last verified 5 August 2026 · game version: 29 July 2026 patch

The opposite error is cheaper but not free: killing a real customer unlocks First Blood, held by 96.9% of players. It is the most common achievement in the game, which tells you how hard this call is and how little the game expects perfection.

What you have to work with

• The ID scan. Run the card and the computer answers exactly one question: is this document what it claims to be?
• The N.E.T. database, searched by hand. You do not need a document to look someone up; you can type a name in yourself. Most new players never touch it, and it is what catches a good forgery.
• The description box on each file. Registered appearance, occupation, personal details and shopping habits — there so you can contradict the person in front of you.
• The Anomaly Lens.
• Vehicle and plate records once unlocked — the only check that concerns something outside the building.

The seven categories of tell

1. Name or personal details do not match the ID. The strongest version is the database reporting that the real person is dead — conclusive even when nothing about the customer looks wrong.
2. Stated occupation contradicts the record. Ask what they do, then read what the file says they do.
3. Habits and personal details do not line up. Compare the purchase habits in the file against what is on the counter.
4. Appearance or clothing contradicts the file. Build, features, what the photo shows versus what is standing there.
5. Behaviour is abnormal. The vaguest category, and the one that improves fastest with practice: you cannot see abnormal until you have watched a lot of normal.
6. The emotion readout does not match the words. A reading that contradicts what the person is saying or doing is a tell on its own.
7. The plate does not match the vehicle’s registered owner. A later unlock, and the one check that happens away from the till.

Categories and systems: TheGamer.

Work the document first

Destructoid’s checks come first because they cost seconds:

• Does the ID have a barcode at all? Some do not. That is the fastest fail available to you.
• Put passports and driving licences through the computer instead of eyeballing them.
• Interrogate against the document. Ask date of birth, ask occupation, and compare the photo with the person — Destructoid singles out scar placement as the detail that catches copies.

The principle underneath all of it: a doppelganger has copied a person, not that person’s paperwork. Anywhere the two are supposed to agree is a seam.

What the tells look like in practice

DualShockers has documented 47 named doppelgangers, each with its own tell. Five, to show the range:

• Nathan Calloway — the database says the real Nathan is dead.
• Natasha Lin — describes working a morning shift at a place that only opens at night.
• Agnes Wells — the real Agnes Wells is three years old.
• Ray Rowland — his neck is far too long.
• Net Pongsak — he is floating.

Two are database contradictions you would never see by looking; two would never be flagged by any scan; one is a man hovering above your floor. No single check covers that spread — layer them.

Not all of them queue at the counter

Destructoid also names forms that never present a document: a spider-like one, an employee shape with abnormally long limbs, a chameleon type blended into a storage-room wall, a duplicate of Sheriff Clyde, corpse forms and infant forms. We have not independently verified each. The consequence is the same either way — a scanner at the till cannot find something standing in your stockroom, so somebody has to walk the aisles.

Norbert: the flag that means nothing

Norbert is a customer-type doppelganger, described by DualShockers as a magical, annoying gnome. His ID scans as fake and the system flags him as a Doppelganger. Both readings are correct, and both are a red herring.

• Let him go and he completes his purchase, leaves, and does not reappear for the rest of the shift.
• Kill him and he returns in different disguises — a poisoned lemonade stand, a motorcycle stunt, dressed as a girl — playing pranks rather than attacking lethally.

Single source, not independently confirmed: the behaviour after killing him is reported only by AllThings.How. The lesson holds either way — the flag tells you a document is wrong, not what the holder is going to do. More on Norbert.

What the 29 July patch changed here

Before it, customers ran down a patience meter while you verified them, so rushing a scan was a defensible choice. That mechanic is gone. Nothing now argues against typing the name into the database, asking a second question, or stepping away from the counter to read a file. Instincts formed in the game’s first week are more hurried than they need to be. See patch notes.

With two or three players

Split roles instead of crowding the till: one on the scanner and database, one watching the aisles for the things that never come to the counter, one keeping the store running so the shift does not fail on numbers. Proximity chat lets the floor watcher speak quietly without the counter breaking eye contact. See co-op roles.

What this page leaves out

All 47 names, because reading them in advance replaces the game with a lookup table. And any schedule of who turns up on which night: customers and events are procedurally generated, so such a list describes one playthrough, not the game.