Case study

h4r: rebuilding the Heroes of Might and Magic IV engine

h4r reimplements the Heroes of Might and Magic IV engine in Rust using data from a player's installation. It parses .h4r archives and .h4c maps, renders an adventure-map prototype and reconstructs selected movement and combat rules, with a separate harness comparing some rule outputs to the original executable.

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: 2
Last commit: 2026-11-05
Language: Rust
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: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: A user's own Heroes of Might and Magic IV installation is required; game assets are not included.
Prerequisites: Rust and Cargo are required; development uses Rust 1.99.1.
Limits: The prototype cannot complete a game; combat has no playable battlefield, and AI, saves and sound are absent.
License: GPL-3.0-or-later License.

Cite

BibTeX

@misc{h4r-case,
  title = {{h4r: rebuilding the Heroes of Might and Magic IV engine}},
  howpublished = {\url{https://github.com/demen1n/h4r}},
  url = {https://github.com/demen1n/h4r},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/h4r-case/}}
}

Plain text

h4r: rebuilding the Heroes of Might and Magic IV engine. https://github.com/demen1n/h4r (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/h4r-case/

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About this entry

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Primary sources

README.md GitHub · demen1n/h4r · Revision 24a3ff5
tools/testbench/README.md GitHub · demen1n/h4r · Revision 24a3ff5