Case study

HotaSim: reconstructing Horn of the Abyss battle mechanics

HotaSim reimplements selected Heroes III: Horn of the Abyss battle mechanics in C++ and uses them in a battle simulator. The author describes reverse-engineering game code, recording Cheat Engine addresses and annotating AI disassembly. The simulator currently handles simple melee units without additional abilities.

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: 3
Last commit: 2024-08-08
Language: C++
License (GitHub): MIT

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: Visual Studio and the Horn of the Abyss game are needed for the documented build and analysis workflow.
Limits: Simulation is limited to simple melee units, and the outcome replay is buggy.
License: MIT license.

Cite

BibTeX

@misc{hotasim-case,
  title = {{HotaSim: reconstructing Horn of the Abyss battle mechanics}},
  howpublished = {\url{https://github.com/patrulek/hotasim}},
  url = {https://github.com/patrulek/hotasim},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/hotasim-case/}}
}

Plain text

HotaSim: reconstructing Horn of the Abyss battle mechanics. https://github.com/patrulek/hotasim (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/hotasim-case/

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Primary sources

README.md GitHub · patrulek/hotasim · Revision 21f6041