---
key: mechanic/detective--family-13
type: mechanic
id: detective--family-13
lang: en
title: Routes and spatial constraints
summary: >-
  The player checks who could move, see, hear or transfer an object within the
  location’s spatial constraints.
updatedAt: '2026-10-22'
status: active
url: 'https://gamemechanics.pro/en/knowledge/mechanic/detective--family-13/'
jsonUrl: >-
  https://gamemechanics.pro/api/v1/knowledge/en/mechanic/detective--family-13.json
markdownUrl: >-
  https://gamemechanics.pro/content/knowledge/en/mechanic/detective--family-13.md
aliases:
  - Routes and access to locations
tags:
  - Detective games
  - Reconstructing events
sourceIds:
  - source-090ee83445744667
sources:
  - id: source-090ee83445744667
    title: The Operator
    url: 'https://store.steampowered.com/app/1771980/'
    verifiedAt: null
relations: []
placements:
  - catalogId: detective
    id: family-13
    title: Detective games
    url: 'https://gamemechanics.pro/en/mechanics/detective/#family-13'
    categoryIds:
      - reconstruction
supersededBy: []
attributes:
  preview:
    updatedAt: '2026-10-22'
    title: Routes and access to locations
    description: >-
      The player checks who could move, see, hear or transfer an object within
      the location’s spatial constraints.
    image:
      src: images/mechanics/narrative-the-operator-03.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_5f9f8137d263ed2142a81c055aa785a08695e4cf.1920x1080.jpg?t=1778485297
      credit: Bureau 81 / Bureau 81 / indienova
      rights: © Bureau 81 / Bureau 81 / indienova. All rights reserved.
      caption: Route geography constrains possible movements
      alt: Route geography constrains possible movements
      markers:
        - x: 29
          'y': 54
          label: Road layout connects the route’s reachable locations
    tips:
      - 'Apply consistent rules for movement, visibility and audibility.'
    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
---
# Routes and spatial constraints

id: detective--family-13
type: mechanic
key: mechanic/detective--family-13
lang: en
status: active
url: https://gamemechanics.pro/en/knowledge/mechanic/detective--family-13/

The player checks who could move, see, hear or transfer an object within the location’s spatial constraints.

## At a glance

![Route geography constrains possible movements](https://gamemechanics.pro/images/mechanics/narrative-the-operator-03.webp)

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

1. Road layout connects the route’s reachable locations

- Apply consistent rules for movement, visibility and audibility.

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

## How it works

The player checks who could move, see, hear or transfer an object within the location’s spatial constraints.

## Variants

### Variants

<a id="family-13-branch-1"></a>

- Available path: reconstruct a route using doors, passages and their opening times. <a id="family-13-variant-1"></a>
- Line of sight: check whether an observer could have seen the claimed detail. <a id="family-13-variant-2"></a>
- Object transfer: establish a possible chain of movement for a key, parcel or other item. <a id="family-13-variant-3"></a>

## Design example

The courtyard entrance cannot be seen from the study. A witness’s knowledge requires another viewpoint or a secondhand account.

## 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 Operator](https://store.steampowered.com/app/1771980/) (id: source-090ee83445744667)

CC-BY-4.0 · gamemechanics.pro contributors