Case study

OpenIGI: a C# engine reimplementation for Project I.G.I. and I.G.I. 2

OpenIGI reimplements the engine for Project I.G.I. and I.G.I. 2 in C# on .NET 10, reading missions, scripts and assets from the user's retail installations. It runs the games' QVM scripts in a reconstructed interpreter and provides a native renderer, launcher and modding layer. The author reports all 14 first-game missions playable, while I.G.I. 2 remains in development.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 136
Last commit: 2026-11-09
Language: C#
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

Copy as Markdown View JSON Cite

Evidence

Observed: Code, documentation and a download method observed; no demo found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: Provide a retail installation of the relevant I.G.I. game; the repository contains no original game assets.
Prerequisites: The .NET 10 SDK is required to build from source.
Limits: I.G.I. 2 is still in development and has no released build; multiplayer is unavailable.
License: GPL-3.0 licence.

Cite

BibTeX

@misc{openigi-engine-case,
  title = {{OpenIGI: a C\# engine reimplementation for Project I.G.I. and I.G.I. 2}},
  howpublished = {\url{https://github.com/OpenIGI/OpenIGI}},
  url = {https://github.com/OpenIGI/OpenIGI},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/openigi-engine-case/}}
}

Plain text

OpenIGI: a C# engine reimplementation for Project I.G.I. and I.G.I. 2. https://github.com/OpenIGI/OpenIGI (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/openigi-engine-case/

Useful? Star Awesome REA on GitHub2.4k

About this entry

The description was reviewed against primary sources.

Report an outdated entry Suggest a translation fix

Primary sources

README.md GitHub · OpenIGI/OpenIGI · Revision ed97501