Case study

OpenD2: rebuilding the Diablo II engine

OpenD2 rewrites the Diablo II game engine in C++ to use the original game’s data and save files. Its source includes MPQ archive, rendering, audio, networking, and game components. The README reports that most of the main menu works, while TCP/IP games stall during loading.

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: 604
Last commit: 2021-05-31
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: An original Diablo II installation and game files.
Prerequisites: Windows builds require CMake and Visual Studio 2017 or later; Linux builds require GLEW, GLM, and SDL2 development packages.
Limits: Most game code is unfinished, and TCP/IP games stall during loading.
License: GPL-3.0 license.

Cite

BibTeX

@misc{opend2-diablo-ii-case,
  title = {{OpenD2: rebuilding the Diablo II engine}},
  howpublished = {\url{https://github.com/eezstreet/OpenD2}},
  url = {https://github.com/eezstreet/OpenD2},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/opend2-diablo-ii-case/}}
}

Plain text

OpenD2: rebuilding the Diablo II engine. https://github.com/eezstreet/OpenD2 (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/opend2-diablo-ii-case/

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About this entry

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Primary sources

README.md GitHub · eezstreet/OpenD2 · Revision 0578244