# Subway Runner 3D: rebuilding Subway Surfers movement rules

> Subway Runner 3D is a procedural Three.js endless runner modeled on Subway Surfers movement and presentation. The author reports using REA and frame-by-frame observation of the original to derive speed, acceleration, jump and gravity values, then implementing lane movement, obstacles and power-ups for browsers and an Android WebView build.

- Type: Case study
- Targets: Game
- Category: Community REA investigations
- Relationship: Author-reported mixed workflow
- Sources reviewed: 2026-11-08
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/ahmedrazakhann/rea-subway-surfers>
- Primary source: <https://github.com/ahmedrazakhann/rea-subway-surfers/blob/087576c07734e65d67f8e30c320990323bad195b/README.md>
- Catalog page: <https://awesomerea.org/resources/subway-runner-3d-case/>
- Record JSON: <https://awesomerea.org/resources/subway-runner-3d-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/subway-runner-3d-case/index.md)

## Requirements & limits

- **Prerequisites:** A browser for the web build; Android and Gradle tooling for the Android wrapper.
- **Scope:** The movement values are the author's reported reconstruction from behavioral observation.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/ahmedrazakhann/rea-subway-surfers/blob/087576c07734e65d67f8e30c320990323bad195b/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.