Sid Meier's Civilization (civ64)
Game: Sid Meier's Civilization (Windows, 1991)
Runs the 1992 Windows version of Sid Meier’s Civilization (the 16-bit Windows 3.1 release) as a native 64-bit Windows program and as a native macOS application (Apple silicon and Intel), with no DOSBox, Wine, or virtual machine. According to the author, the original civ.exe was recovered from machine code into readable C (1,065 functions) and the 699 functions that can run were translated into portable C and compared instruction by instruction with the original; the Borland run-time library was replaced and the Windows 3.1 environment is re-created inside the program. The rules, the AI, and the saves are the original’s, bugs included, and you can switch to the graphics of Civilization for DOS at any moment. The code isn’t published: the repository only holds documentation and screenshots, and the program (civ64.exe, Civ64-Win7.exe, and the macOS .dmg, about 5 MB) ships as a prebuilt file in each release; the author says the project’s own code will be published at the end of the project, and that the recovered C of the original will not be. According to the README, it plays the whole game, from the opening credits to the end games. Version 1.2.5 (October 25) is the latest of eight releases. It states it was made with Claude’s help; 12 of its 19 commits list Claude as a co-author.
You needYour own copy of Sid Meier’s Civilization for Windows (the Windows 3.1 release), with all its files, in a CivWin folder or a CivWin.zip next to the program: it only accepts a civ.exe of 832,512 bytes with SHA-256 a66ec64020f10adb81613964f3d08a11ea278b6a5a060c8e49d1ea1fd3ba1788. Optional, for the DOS graphics: your copy of Civilization for DOS 475.05 (CIV.EXE of 305,030 bytes), in CivDos. Plus 64-bit Windows 10 (1607 or later) or 11 (Civ64-Win7.exe for Windows 7, not yet tried on that system), or macOS.
- How it gets to PC
- Native layer
- Console
- Microsoft Windows
- Original studio
- MicroProse
- Year
- 1992
- Author
- Buyukcaglar
- Stars
- 27
- Last activity
- 2026-10-25 · 17 days ago
- Latest version
- v1.2.5 · 2026-10-25
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