# G-Engine: rebuilding Gabriel Knight 3 around its original data

> G-Engine reimplements the engine needed to play Gabriel Knight 3: Blood of the Sacred, Blood of the Damned on Windows, macOS and Linux using the original game's data. Its C++ code parses Barn asset bundles and handles the game's Bink and AVI videos; the source credits earlier reverse engineering of BRN, BSP and ACT formats. The author reports a completable game with remaining bugs and missing noncritical features.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-08
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/kromenak/gengine>
- Primary source: <https://github.com/kromenak/gengine/blob/f8ff4f65fc21641fbd5515a349e3261c54fd6b6f/README.md>
- Catalog page: <https://awesomerea.org/resources/g-engine-gabriel-knight-3-case/>
- Record JSON: <https://awesomerea.org/resources/g-engine-gabriel-knight-3-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/g-engine-gabriel-knight-3-case/index.md)

## Requirements & limits

- **Prerequisites:** Requires the user's Gabriel Knight 3 data: Barn (.brn) bundles and .bik and .avi video files from the game's Data directory; the demo's Gk3demo.brn is also supported.
- **Prerequisites:** Runs on Windows, macOS and Linux; source builds use CMake.
- **Limits:** The author reports that the game is completable, with bugs and missing noncritical features.
- **License:** GPL-3.0.

## Primary sources

1. <https://github.com/kromenak/gengine/blob/f8ff4f65fc21641fbd5515a349e3261c54fd6b6f/README.md>
2. <https://github.com/kromenak/gengine/blob/f8ff4f65fc21641fbd5515a349e3261c54fd6b6f/Data/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.