Shagg88/COGBox

This is a preservation-minded fan project for people who already own Gears of War 2, 3 or Judgment on disc or as a console download and want them running as native Windows programs. Adoption is reasonable only if you accept that testing so far reflects one developer's PC and that the correct game release and title update matter more than any launcher setting.

The problem

You have an Xbox 360 disc or a Games on Demand copy and want to play it on a modern PC at resolutions and frame rates the console never offered. An emulator gets you there, but it has to interpret console code at runtime and its rendering path is general-purpose. Here the console code is translated ahead of time into C++ and compiled into an ordinary Windows executable, so the game runs without an emulator in the loop. The launcher takes your disc image, checks it is a supported release, unpacks it beside itself and starts the game.

What's different

The mechanism is static recompilation using the rexglue SDK, a Xenia-derived toolchain and runtime. The project then supplies the console's GPU behaviour itself, including its own Direct3D 12 renderer, with Vulkan as an experimental option. That ownership of the rendering path is what yields output at 1x to 4x the original resolution (up to 5K), plus SMAA, FSR, DLSS and XeSS upscaling. The README also describes four layers of shared work, with Unreal Engine 3 and per-game logic separated so the games can share a base.

The trade-off is narrowness. Each port targets one specific release: for Gears of War 2, the US disc version plus Title Update 6; Gears of War 3, disc plus Title Update 6; Judgment, disc plus Title Update 4. The launcher warns when you add a different release, and the README asks users to use the latest title update. This is not a general Xbox 360 compatibility layer, and the games included are the ones the author chose to port. The "in testing" status for Gears 2 is explicitly qualified: chapter coverage was checked on the developer's RTX 3080 Ti and through scripted test runs, and the README states other hardware has not been tried yet.

Who should try it

A good fit is someone who still has the right disc image or console copy and the matching title update, has a DirectX 12 GPU and an AVX2-capable CPU, and wants to replay these campaigns natively with higher resolution and upscaling options. The build-and-test approach is also interesting if you follow static recompilation work. A poor fit is anyone looking for a ready-made emulator alternative for the whole Xbox 360 library, or who owns only a differently versioned release, since the launcher can only set up the exact versions the ports expect. Linux and Steam Deck users have a documented path through Proton, but the README labels it experimental; the project's plans list tested support as future work, not a current guarantee. Those users should read the Proton notes before assuming parity with Windows.

Requirements and limitations

Windows 10 or 11, 64-bit, an AVX2 CPU roughly from Intel Haswell or AMD Ryzen onward, and a DirectX 12 graphics card are hard requirements. A CPU without AVX2 means the game cannot start, according to the README. You must supply your own copy, and the accepted forms are a disc image, a Games on Demand copy or an extracted game folder. The launcher must be unzipped to a writable location such as a games folder rather than Program Files, and the binaries are unsigned, so Windows SmartScreen may intervene. Downloading the current release is the documented starting point.

Ongoing care is mostly about version discipline: add the title update the same way as the game, keep graphics drivers current, and be ready to provide a log when a game closes unexpectedly. The launcher's problem report produces a zip with the log, settings and machine description, with saves and game files excluded and the Windows user name removed; nothing is uploaded automatically. Bugs should go to the issue tracker. The README says the project is offered as-is, for preservation and personal use, with no warranty.

HotRepo's take

The repository's single recorded observation is a #4 position with 133 total stars on HotRepo's NEW-REPOSITORY board for cpp on 2026-10-28, which is not an overall Trending rank or a daily growth figure. With one dated snapshot and no comparable daily history, persistence cannot be judged. Before investing time, verify that your game copy matches the release and title update each port was built for; that is the documented precondition, and the README offers the project's instructions as the place to check it.

Project source and documentation