Sonic World Runner
From Sonic Retro
Sonic World Runner is a Sonic the Hedgehog fan game project, in development for Windows and Mac OS X using Epic Software's Unreal Development Kit.
The project’s goal is to create a complete (and high quality) 3-dimensional Sonic game built around original concepts and innovations in gameplay alike. The crew behind this is a seventeen-person team of devoted, and talented, Sonic fans.