About this project
Little Planet recompiles Sonic CD’s Mega-CD code to C and supplies its own hardware/runtime layer, including both 68000s, Z80, video and audio components. It offers widescreen and an optional remastered opening.
Source: Official project README — editorial review ↗ · Checked Oct 21, 2026
Compatibility
Use your own Sonic CD image. The tested edition is Japan G-6021, data-track SHA-1 5b0ac16233028bcd8691c71b0a749b8d485dae7c. Windows, Linux and macOS are documented; other disc releases may boot but are untested.
Source: Official project README — editorial review ↗ · Checked Oct 21, 2026
Documented support and independently tested compatibility are different. AllRecomps has not run these games.
Development progress
The README reports boot, gameplay, CD/PCM/FM audio and save states, with matching reconstruction of executable files and comparisons against an interpreter. These are project-reported checks.
Source: Official project README — editorial review ↗ · Checked Oct 21, 2026
The latest non-prerelease GitHub release observed is 1.0. A release does not establish stability, complete gameplay or tested platform support.
Source: GitHub latest release (automatic) ↗ · Checked Oct 21, 2026
Known limitations
Runtime hardware models remain part of the project; static game-code translation does not mean every console component is absent. Frame-comparison tests concern the documented Japanese version and do not certify other regions or every hardware configuration.
Source: Official project README — editorial review ↗ · Checked Oct 21, 2026
Getting started
Use the official package and select your disc in the launcher, or follow build.bat/buildlinux.sh/buildmac.sh with the documented Python/compiler/SDL3 dependencies. The original opening works without the optional FFmpeg/remastered-video components.
Source: Official project README — editorial review ↗ · Checked Oct 21, 2026
Some projects require files from your own copy of the original game. Follow the official instructions.