---
key: mechanic/detective--family-15
type: mechanic
id: detective--family-15
lang: en
title: 'Cause, mechanism and staging'
summary: >-
  The player separates the observed outcome from its mechanism and later
  attempts to conceal it.
updatedAt: '2026-10-22'
status: active
url: 'https://gamemechanics.pro/en/knowledge/mechanic/detective--family-15/'
jsonUrl: >-
  https://gamemechanics.pro/api/v1/knowledge/en/mechanic/detective--family-15.json
markdownUrl: >-
  https://gamemechanics.pro/content/knowledge/en/mechanic/detective--family-15.md
aliases: []
tags:
  - Detective games
  - Reconstructing events
sourceIds:
  - source-d44fa1b4a4c747d6
  - source-090ee83445744667
sources:
  - id: source-d44fa1b4a4c747d6
    title: The Case of the Golden Idol
    url: 'https://www.thegoldenidol.com/the-case-of-the-golden-idol/'
    verifiedAt: null
  - id: source-090ee83445744667
    title: The Operator
    url: 'https://store.steampowered.com/app/1771980/'
    verifiedAt: null
relations: []
placements:
  - catalogId: detective
    id: family-15
    title: Detective games
    url: 'https://gamemechanics.pro/en/mechanics/detective/#family-15'
    categoryIds:
      - reconstruction
supersededBy: []
attributes:
  preview:
    updatedAt: '2026-10-22'
    title: 'Cause, mechanism and staging'
    description: >-
      The player separates the observed outcome from its mechanism and later
      attempts to conceal it.
    image:
      src: images/mechanics/narrative-the-operator-08.webp
      width: 1440
      height: 810
      game: The Operator
      sourceUrl: 'https://store.steampowered.com/app/1771980/'
      originalUrl: >-
        https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1771980/ss_53cdfb9a020be84bd244dba7817656b1c37a176f.1920x1080.jpg?t=1778485297
      credit: Bureau 81 / Bureau 81 / indienova
      rights: © Bureau 81 / Bureau 81 / indienova. All rights reserved.
      caption: Chemical analysis of a sample beside the fire report
      alt: Chemical analysis of a sample beside the fire report
      markers:
        - x: 56
          'y': 69
          label: The sample’s composition can be compared with the report’s claims
    tips:
      - 'Distinguish the cause, outcome and traces of later staging.'
    examples:
      - title: The Operator
        url: 'https://store.steampowered.com/app/1771980/'
endsAt: null
provenance: >-
  Original editorial taxonomy authored for gamemechanics.pro on 2026-10-19.
  Primary developer and publisher sources support specific released-game
  examples, not the whole classification; design examples are hypothetical.
license: CC-BY-4.0
codeLicense: MIT
attribution: gamemechanics.pro contributors
catalogKey: catalog/detective
---
# Cause, mechanism and staging

id: detective--family-15
type: mechanic
key: mechanic/detective--family-15
lang: en
status: active
url: https://gamemechanics.pro/en/knowledge/mechanic/detective--family-15/

The player separates the observed outcome from its mechanism and later attempts to conceal it.

## At a glance

![Chemical analysis of a sample beside the fire report](https://gamemechanics.pro/images/mechanics/narrative-the-operator-08.webp)

[The Operator](https://store.steampowered.com/app/1771980/) · © Bureau 81 / Bureau 81 / indienova. All rights reserved.

1. The sample’s composition can be compared with the report’s claims

- Distinguish the cause, outcome and traces of later staging.

- [The Operator](https://store.steampowered.com/app/1771980/)

## How it works

The player separates the observed outcome from its mechanism and later attempts to conceal it.

## Variants

### Variants

<a id="family-15-branch-1"></a>

- Event mechanism: connect an action, means and outcome in a testable causal chain. <a id="family-15-variant-1"></a>
- Primary and secondary traces: distinguish the event’s traces from cleanup, assistance or substitution. <a id="family-15-variant-2"></a>
- Exposing staging: identify a fact that the staged explanation cannot account for. <a id="family-15-variant-3"></a>

## Design example

A fall appears accidental, but the railing’s position does not explain a tool mark. Another hypothesis is needed.

## Context and limits

A working map of detective design: 32 families and 96 variants. The core loop is to find information, form a hypothesis, test it and explain a conclusion. Answer formats, hints and investigation structure are treated separately. Families overlap, design examples are hypothetical, and released-game examples cite primary sources without revealing case solutions.

## Connected materials


## Sources and provenance

Original editorial taxonomy authored for gamemechanics.pro on 2026-10-19. Primary developer and publisher sources support specific released-game examples, not the whole classification; design examples are hypothetical.

- [The Case of the Golden Idol](https://www.thegoldenidol.com/the-case-of-the-golden-idol/) (id: source-d44fa1b4a4c747d6)
- [The Operator](https://store.steampowered.com/app/1771980/) (id: source-090ee83445744667)

CC-BY-4.0 · gamemechanics.pro contributors