# Open76: an Interstate '76 engine reimplementation

> Open76 reimplements the Interstate '76 engine in Unity using the game's installed data. It parses and renders levels and cars, reads compressed and uncompressed ZFS archives, and has a partial interpreter for mission stack machines.

- 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/rob518183/Open76>
- Primary source: <https://github.com/rob518183/Open76/blob/33caa9cdddc11d0eaf9cf2b891235d51711f7378/README.md>
- Catalog page: <https://awesomerea.org/resources/open76-case/>
- Record JSON: <https://awesomerea.org/resources/open76-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/open76-case/index.md)

## Requirements & limits

- **Prerequisites:** Unity and an Interstate '76 installation directory are required.
- **Limits:** Mission actions and car simulation remain incomplete; the simulation does not yet work.
- **License:** GPL-3.0.

## Primary sources

1. <https://github.com/rob518183/Open76/blob/33caa9cdddc11d0eaf9cf2b891235d51711f7378/README.md>
2. <https://github.com/rob518183/Open76/blob/33caa9cdddc11d0eaf9cf2b891235d51711f7378/Notes/Filetypes_i76.md>

## More in Games

- [Open76: reimplementing Interstate '76 in Unity](https://awesomerea.org/resources/open76/index.md) · Case study
- [openage: a Genie Engine reconstruction for Age of Empires games](https://awesomerea.org/resources/openage-case/index.md) · Case study
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- [OpenAWE: an open reimplementation of Remedy’s Alan Wake engine](https://awesomerea.org/resources/openawe-alan-wake-engine-case/index.md) · Case study
- [OpenBattlefield2: an unfinished Refractor 2 engine reimplementation](https://awesomerea.org/resources/openbattlefield2-refractor-engine-case/index.md) · Case study

## 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.
