Sonic Mania
Sonic Mania (PC, 2017) has a matching decompilation, RSDKModding/Sonic-Mania-Decompilation, and 5 other public projects, including a decompilation and a native port.
Data checked 2026-10-12 · unbaked registry
Projects
A complete decompilation of Sonic Mania (2017)
latest release v1.1.1 (2025-11-01); Complete decompilation of Sonic Mania that builds native ports for PC, Switch, Android and more; Maintainer describes a full or complete decompilation; no comparable numeric metric verified; snapshot 202…
A complete decompilation of Retro Engine (v5)
version v1.1.1 (latest); completeness: playable ('A complete decompilation of Retro Engine v5 and v5Ultimate.'); PCGW: origin Decompilation; status Complete; lang C++; Made without AI
RSDKv5 and Sonic Mania decompilation with added VP9 video and OPUS audio capabilities to make the game 25MB
PS3-PORT
This is a Sonic Mania Browser port that ACTUALLY will boot into the menu, save, and even have no crashes basically the full game unlike other ports!
This is a Sonic Mania Browser port that ACTUALLY will boot into the menu, save, and even have no crashes basically the full game unlike other ports!; no GitHub releases; repo created 2026-02-27
wasm specific changes to Sonic-Mania-Decompilation from RSDKModding: https://github.com/RSDKModding)
What you need
You need your own copy of the game: these projects ship code only.
Same toolchain
More on PC
Found via SubmitGame/awesome-decomp-games, solarfren69420/GameDecompLibrary/blob/main/data/, madpai/game-decomp-compendium/blob/main/skills/g, tanookistudios.com/decomp-buddy/catalog.json, pcgamingwiki.com/wiki/List_of_unofficial_ports
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.