Travel past and future at 60 FPS in the definitive Retro Engine v3 WebAssembly source port.
Sonic CD Web is powered by Rubberduckycooly's open-source decompilation of the 2011 Sonic CD remake, built on Christian Whitehead's Retro Engine v3. Compiled to WebAssembly, it delivers authentic 60 FPS physics, widescreen support, and both US and Japanese soundtrack selections.
Sonic the Hedgehog and Sonic CD are trademarks of SEGA Corporation. This port is an open-source engine decompilation research build.
| Action | Input / Key | Supported Device |
|---|---|---|
| ● Move | Arrow Keys or WASD | Keyboard & Gamepad |
| ● Spindash | Down + Space | Keyboard & Gamepad |
| ● Jump | Space or Z | Keyboard & Gamepad |
| ● Peel-out | Up + Space | Keyboard & Gamepad |
| ● Pause Menu. | Esc | Keyboard & Gamepad |
Sonic CD (Retro Engine Decompilation) is powered by Retro Engine v3 (RSDKv3) / Emscripten WASM. It executes code directly inside modern browsers via WebAssembly (WASM) and WebGL 2.0 with hardware acceleration and 60 FPS performance.
Game progress is handled through Browser LocalStorage/IndexedDB. Save states are stored inside your browser's private IndexedDB sandbox. Avoid clearing browser cache or cookies to preserve your saves.
Yes! Modern Xbox, PlayStation, and Nintendo Switch gamepads are supported natively via the browser Web Gamepad API. Connect your controller before launching.
Yes. PortedToBrowser.com indexes open-source engine decompilations and verified web sandboxes. We do not host or distribute proprietary game ROMs or copyrighted binaries.
Initial verified release in the PortedToBrowser technical index.
