OpenSmash-Ultimate

Terms of use

Last updated November 13, 2026.

Download v0.3.0-alpha.313.0.5 setup guide
Platform-fighter esports tournament venue packed with spectators watching a main-stage bracket match
Competitive Smash Ultimate bracket crowd and 60 FPS tournament stage pacing

Informational reference

All content on opensmashultimate.wiki is provided "as is" for technical documentation. OpenSmash-Ultimate/OpenSmash-Ultimate, OpenSmash-Ultimate/WindowSmash, and OpenSmash-Ultimate/ssbu-recomp are active open-source projects whose behavior changes across commits and alpha releases.

Third-party software & verification

Release executables and toolchains linked from this wiki are hosted on GitHub by their respective maintainers under open-source licenses (GPL-3.0-or-later). Always verify SHA-256 checksums before running downloaded executables, and never run shell commands pasted from untrusted GitHub issue comments.

This site hosts zero game code, assets, ROMs, keys, or firmware. Super Smash Bros. Ultimate and Nintendo Switch are trademarks of Nintendo.

Nintendo GameCube controller showing octagonal analog gate, C-stick, L/R analog shoulder triggers and A/B/X/Y layout
Native GameCube controller input via 4-port Wii U USB adapters (WinUSB / HID) with analog L/R triggers
Desktop gaming PC workstation with dual monitors and tempered glass chassis
Windows 10/11 x64 desktop build host for AArch64-to-C static recompilation, Direct3D 11 and Vulkan
Macro view of a multi-core x86-64 processor and integrated GPU silicon package
AVX2 / SSE4.2 CPU compiler pipeline and 40,000-shader ahead-of-time cache