Case study

GTA4Unity: reconstructing the GTA IV world in Unity

GTA4Unity reconstructs GTA IV world loading and rendering in Unity 6 using the player's original game files. It parses IMG archives, WDR/WFT models, WTD textures, IDE definitions and IPL/WPL placements, converts RAGE coordinates to Unity space and streams world geometry through Unity's Entity Component System.

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: 20
Last commit: 2026-05-06
Language: C#
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

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

How evidence classes are assigned

Requirements & limits

Prerequisites: Windows, Unity 6 version 6000.4.0f1 or newer, and a licensed GTA IV installation are required.
Prerequisites: At least 8 GB RAM is required.
Limits: Physics, vehicles, pedestrians and gameplay are not implemented yet.
License: GPL-3.0 License.

Cite

BibTeX

@misc{gta4unity-case,
  title = {{GTA4Unity: reconstructing the GTA IV world in Unity}},
  howpublished = {\url{https://github.com/Infinity-Loops/GTA4Unity}},
  url = {https://github.com/Infinity-Loops/GTA4Unity},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/gta4unity-case/}}
}

Plain text

GTA4Unity: reconstructing the GTA IV world in Unity. https://github.com/Infinity-Loops/GTA4Unity (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/gta4unity-case/

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Primary sources

README.md GitHub · Infinity-Loops/GTA4Unity · Revision c107e46