Space Rangers HD: A War Apart - Decompilation

Космические рейнджеры HD: Революция

A decompilation project recovering the game’s Delphi source code. The recovered source compiles to a byte-for-byte identical Rangers.exe.

Both binaries report game version 2.1.2500 (file version 2.1.2500.0).

Branch	Build	Distribution	Size (bytes)
main	2026-10-06	Prerelease	4,533,760
build-2025-10-13	2025-10-13	Steam/GOG release	4,995,584

Prerelease (2026-10-06):

e43a4b15503c705eebe2d8ce5778c2a2fb090db515a3fd86d319e5c5aa692ebf

Steam/GOG release (2025-10-13):

83300344af802bc51e64389c58f047e5afdf195c133048098be3881fae29ed98

AI disclosure: This decompilation project was carried out almost entirely by GPT-6 Astra in Codex, with some human steering.

Install the prerequisites, then run:

./decomp setup
./decomp verify

Setup downloads and prepares the Delphi toolchain. Verification checks the whole executable against the original SHA-256. Game data comes from your installed game.

Development and progress reports · Pascal annotations

See also:

• okgf - a portable C reimplementation of the game's okgf.dll, useful for ports to other platforms.
• MatrixGame - the published source code for the 3D planetary battle engine used by Space Rangers 2, Reboot and Revolution.
• SpaceRangersHD_FPC - a reference Free Pascal port of the recovered source, limited to the fixes needed to run the game across operating systems and CPU architectures.
• SpaceRangersHD_FPC (personal) - a customised version of the Free Pascal port with performance optimisations and extra features.

Unofficial; not affiliated with the game's developers or publisher. See rights and attribution and the tooling license.