Case study

OpenGMK: reconstructing the GameMaker Classic runner and projects

OpenGMK reconstructs the GameMaker Classic runner and supplies tools for examining its games. GM8Decompiler extracts game data embedded in GameMaker 8 executables and rebuilds GMK or GM81 project files. Its companion emulator runs Classic games and records or replays TAS input; development remains in progress.

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

Stars: 412
Last commit: 2026-10-13
Language: Rust
License (GitHub): GPL-2.0

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: Requires a GameMaker Classic game executable; GameMaker: Studio games are unsupported.
Prerequisites: Building requires Rust and recursive Git submodules; Windows builds currently support MSVC only.
Limits: The emulator requires OpenGL 3.3 with GLSL 3.30; save states may break between releases.
License: GPL-2.0-only license.

Cite

BibTeX

@misc{opengmk-case,
  title = {{OpenGMK: reconstructing the GameMaker Classic runner and projects}},
  howpublished = {\url{https://github.com/OpenGMK/OpenGMK}},
  url = {https://github.com/OpenGMK/OpenGMK},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/opengmk-case/}}
}

Plain text

OpenGMK: reconstructing the GameMaker Classic runner and projects. https://github.com/OpenGMK/OpenGMK (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/opengmk-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Report an outdated entry Suggest a translation fix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 · OpenGMK/OpenGMK · Revision 9e4282e
gm8decompiler/README.md GitHub · OpenGMK/OpenGMK · Revision 9e4282e