Case study

Caesar II Reconstruction: byte-matched DOS source and Windows function comparisons

Caesar II Reconstruction recovers C and assembly for the 1995 game and rebuilds its DOS PS.EXE with Watcom C. Its toolkit compares code and initialized data with the original, while a separate MSVC 4.0 workflow compares Windows functions against CAESAR2.EXE. The author reports a byte-exact DOS rebuild outside generated debug information.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06

Stars: 6
Last commit: 2026-09-06
Language: C
License (GitHub): AGPL-3.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: Requires Nix with flakes and Podman for the Watcom container.
Prerequisites: Requires a local original PS.EXE matching the pinned hash; the runnable game also needs assets from a CD.
Limits: A fresh clone currently needs a sibling reccmp checkout because the fork is not yet published.
License: Licensed AGPL-3.0-or-later for project-owned code.

Cite

BibTeX

@misc{caesar-ii-reconstruction-case,
  title = {{Caesar II Reconstruction: byte-matched DOS source and Windows function comparisons}},
  howpublished = {\url{https://github.com/second-impressions/caesar2-reconstruction}},
  url = {https://github.com/second-impressions/caesar2-reconstruction},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/caesar-ii-reconstruction-case/}}
}

Plain text

Caesar II Reconstruction: byte-matched DOS source and Windows function comparisons. https://github.com/second-impressions/caesar2-reconstruction (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/caesar-ii-reconstruction-case/

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Primary sources

README.md GitHub · second-impressions/caesar2-reconstruction · Revision f549467
TODO.md GitHub · second-impressions/caesar2-reconstruction · Revision f549467