# ssbu-recomp: static recompilation with explicit mode limits

> Translates Super Smash Bros. Ultimate 13.0.4 AArch64 code ahead of time and supplies a Windows runtime with Vulkan/OpenGL rendering. It also reconstructs selected fighter scripts as editable C++ and compares translated/source behavior through differential and deterministic tests.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-10-17
- Added to the catalog: 2026-10-17
- Original resource: <https://github.com/Denkishi/ssbu-recomp>
- Primary source: <https://github.com/Denkishi/ssbu-recomp/blob/938e66bb7be0ba4123e291211895412da421b705/README.md>
- Catalog page: <https://awesomerea.org/resources/ssbu-recomp-case/>
- Record JSON: <https://awesomerea.org/resources/ssbu-recomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/ssbu-recomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Running requires Windows 10/11 x64, a Vulkan 1.3-capable GPU and the user’s own 13.0.4 game dump. Linux and Steam Deck support have not started.
- **Prerequisites:** Building requires Python 3.10+ with the documented packages, LLVM/clang 9.0.0 (8.0.0 is also documented as working), MSVC/Windows SDK, SDL3, Vulkan headers, glslang and reference tooling. Music needs libopus; movies need Media Foundation, VP9 Video Extensions and Web Media Extensions 2.x, with Media Feature Pack additionally required on Windows N.
- **Limits:** Only some modes have reported play coverage. Adventure maps/fights and several multiplayer modes are untested; online is unavailable. Physical controllers are not yet confirmed.
- **Testing evidence:** The author credits Claude agents. Reported frame rates, differential equivalence and selected fighter match traces.
- **License:** The README grants GPL version 3 or later. The public repository supplies tools/runtime rather than the game dump, keys or assets; game-derived output is a separate requirement.

## Primary sources

1. <https://github.com/Denkishi/ssbu-recomp/blob/938e66bb7be0ba4123e291211895412da421b705/README.md>
2. <https://github.com/Denkishi/ssbu-recomp/blob/938e66bb7be0ba4123e291211895412da421b705/BUILDING.md>
3. <https://github.com/Denkishi/ssbu-recomp/blob/938e66bb7be0ba4123e291211895412da421b705/LICENSE>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.