Case study

OpenBattlespire: reimplementing the Battlespire engine

OpenBattlespire reimplements the engine of An Elder Scrolls Legend: Battlespire in C and reads the user’s original game files at runtime. Its source includes game systems, format parsers and data tools; research notes analyze GAME.EXE and document BSA, BS6, save and other formats. The README describes playable movement, combat, dialogue and save behavior.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C1 partial scope or analysis entry

Stars: 5
Last commit: 2026-11-05
Language: C
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Demo video thumbnail from the project's public documentation

Observed: Demo documented; the documentation covers part of the feature set.
Scope: Partial
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: A user-owned copy of Battlespire is required for game data.
Prerequisites: Building requires CMake 3.25+ and a C17 compiler; the viewer also needs SDL3 3.2+ and OpenGL 3.3.
License: MIT.

Cite

BibTeX

@misc{openbattlespire-case,
  title = {{OpenBattlespire: reimplementing the Battlespire engine}},
  howpublished = {\url{https://github.com/SapphireDragoness/open-battlespire}},
  url = {https://github.com/SapphireDragoness/open-battlespire},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/openbattlespire-case/}}
}

Plain text

OpenBattlespire: reimplementing the Battlespire engine. https://github.com/SapphireDragoness/open-battlespire (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/openbattlespire-case/

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About this entry

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Primary sources

README.md GitHub · SapphireDragoness/open-battlespire · Revision 6653df9
docs/re/README.md GitHub · SapphireDragoness/open-battlespire · Revision 6653df9