Case study

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.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-10-17

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.

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Primary sources

README.md GitHub · Denkishi/ssbu-recomp · Revision 938e66b
BUILDING.md GitHub · Denkishi/ssbu-recomp · Revision 938e66b
LICENSE GitHub · Denkishi/ssbu-recomp · Revision 938e66b

Requirements & limits

About this entry

Primary sources

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