# OpenGTA2: rebuilding GTA2 from its game files

> OpenGTA2 rebuilds a playable GTA2 test world in C# and MonoGame using the player's game files. Its readers parse RIFF, .gmp maps, .sty styles, .sdt/.raw audio and .scr scripts; the client implements map rendering, player control and collision.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/ikkentim/opengta2>
- Primary source: <https://github.com/ikkentim/opengta2/blob/ec605558e2c6b48432c7e2163859623c3ec11866/docs/architecture.md>
- Catalog page: <https://awesomerea.org/resources/opengta2-case/>
- Record JSON: <https://awesomerea.org/resources/opengta2-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/opengta2-case/index.md)

## Requirements & limits

- **Prerequisites:** A GTA2 installation containing the documented data files, selected through OPENGTA2_PATH.
- **Prerequisites:** The client targets Windows and .NET 10 with MonoGame.
- **Limits:** Collision behavior has documented limitations and lacks client-side tests.
- **License:** MIT license.

## Primary sources

1. <https://github.com/ikkentim/opengta2/blob/ec605558e2c6b48432c7e2163859623c3ec11866/docs/architecture.md>
2. <https://github.com/ikkentim/opengta2/blob/ec605558e2c6b48432c7e2163859623c3ec11866/docs/README.md>
3. <https://github.com/ikkentim/opengta2/blob/ec605558e2c6b48432c7e2163859623c3ec11866/LICENSE>

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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.