The 2003 PlayStation 2 game as a native Windows and Linux program
The game's own code, rebuilt to run on a PC from your own disc. Online play goes through a small server the project hosts. Work in progress, source on GitHub.
No download yet. Leave an email for when a build is ready.
Mission overview
The game's MIPS code was statically recompiled to C++ and built as a normal executable. The PS2's graphics chip, vector units and sound driver are reimplemented on the host. No emulator runs underneath.
Howa fork of PS2Recomp for the CPU side, OpenGL for the drawing, a 989snd reimplementation for the sound.
Nothing from the game ships with the download. You point the launcher at your own NTSC r0001 ISO; it verifies the disc and keeps Launch off until it matches. Saves are plain files in a folder.
Howthe launcher hashes SCUS_972.75 inside the image against the digest this recompilation was made from.
A Horizon server in US East (Ohio) stands in for Sony's long-gone service. Log in with any free name, create a game, play a round. Its live status is on this page.
Howthe game's network layer runs on host sockets; the launcher points at socom.scotho.com by default.
How it was built. Most of the repository was produced by AI agents (Claude, through Claude Code) working in sprints under a human owner: specs and plans, numbered rulings, a "known / believed / retracted" ledger, and a gate that has to go green before a sprint closes. The story page tells that story with its evidence; the repository keeps the sprint plans as they were written.
Map viewer, experimental. A separate WebGL program that flies around the online maps in your browser, reading the disc's map archives rather than the port's own rendering. It lives in the repository's web/ tree and is getting an address of its own.
Objectives, as of 2026-09-24
From the project's own ledger of what is proven, what is only believed and what was retracted, checked against the commit log. It is playable and it is not finished. Some 290 commits landed in the three days after the last playtest; one was a revert and several claims were withdrawn.
Sources: the project's KNOWN.md (proven, believed, retracted, hazards), CURRENT_SPRINT.md, LADDER.md, HUMAN_TASKS.md and the chain 18 logs on 2026-09-24, with the git log where the docs lag it; the story page cites the runs.
Mission log
First commit to today, as a timeline. Every entry carries its evidence.
SOCOM II online, US East (Ohio)
The project runs its own server so builds can be tested against something known. The aim, once the port is stable and Sony's r0004 patch is supported, is to join the existing community servers rather than keep a separate one.
Setup guide
socom_unzipped_launcher. On the DISC page, browse to your ISO; READY appears once it's verified.Field report
What broke, and what you did just before. Plain text, no account, nothing leaves the page until you press SEND. No build yet? Leave an email to hear when there is one.
Intel
What this port is built on, what it learned from, and how each was used. Nothing here ships game data. No code was taken from the community references: their offsets and names were treated as facts and re-derived against our own binary, and Sony's proprietary SDKs were left alone.
The game. The port runs the US retail disc you supply, SCUS_972.75 at revision r0001, and distributes nothing from it. This project is not affiliated with or endorsed by Sony or Zipper.
The static recompiler. Our fork turns the game's MIPS R5900 code into C++, and its runtime supplies the EE kernel, DMAC, VIF and GIF, the VU1 path, a GS drawn through OpenGL and the IOP services at the SIF-RPC level. It is why the port is GPL-3.0.
The Medius server the online play runs on, configured for SOCOM II's app id 10472 and hosted in US East (Ohio), standing in for Sony's long-gone service.
Mapped the game's functions and decompiled them. The function map it exported is what the recompiler works from; its decompilation is what every offset on this site was checked against.
Drove the recovery of the game's two encrypted overlays from the retail loader, and the EE harness that checks how instructions really behave.
The parity gate boots the real game beside our build and scores the frames, title to mission. Every visual claim here was checked against it.
Clang builds the generated C++ and the runtime into the Windows and Linux executables.
Decodes the disc's MPEG movies behind the sceMpeg reimplementation, including the menu loop this site plays.
The window, the pads (any controller GLFW's mapping database knows, in the right layout) and the audio output.
Drive PCSX2 and the build side by side for the parity gate, and carry the project's second test suite.
Claude Code sessions wrote the code in a test-first loop: agents change it, the gates score it, the owner plays it and says what is off. The story page is that loop's diary.
A reconstruction of the first SOCOM's engine. Its type names and enums, the round states and the network game object, are the vocabulary the online work used to read this game's memory. No code was copied.
The live community service. Its guide, the r0004 patch and the published DNAS bypass gave the app ids, the hostnames the game resolves and the client revisions.
Player-structure offsets, health and life state, for the r0004 client. Treated as facts and re-derived against our own r0001 binary before use.
r0001 offsets and patch bytes. Their restore bytes matched our ELF byte for byte, which is how the disc's revision was confirmed.
Its stub-contract auditing, classifying every consumer of a stubbed call, is the method our HLE audit borrowed.
Findings from another PS2Recomp port: the schema our own findings follow.
Kernel expectations, used as fixtures for the EE-kernel stubs.
Recovers Sony library symbols in a retail binary; run as a tool, not vendored.
The static-recompilation lineage. Their differential tests and validation habits shaped ours.
The open PlayStation 2 SDK: the kernel and hardware references behind the runtime's reimplementations.
The wiki and the Wireshark dissector that explained the lobby traffic the server work had to speak.
The published SCUS-97275 patch file, read to learn what the community already knew about the disc.
The menu movie, the sounds and the typewriter are the game's own, as stand-ins. Hosted on AWS Lightsail behind a Cloudflare tunnel.
The full research notes, with what each source was checked against and what may be reused under which licence, are in the repository's docs/research folder.
Licences named are those published by each project as of 2026-09-20. If yours is missing or misdescribed, the bug form above reaches the owner.