Sonic Utopia Reveal Trailer

Sonic Utopia is an experiment that not only tries to expand on Sonic gameplay in an intuitive way in 3D, but also aims to capture the best of Sonic's style a

Sonic Utopia is a fan made, open world Sonic the Hedgehog demo

Fan Group Creates Open-World Sonic Video Game - Gameranx

Open-World Sonic Game Being Developed by Fan

Sonic Utopia Reveal Trailer

Sonic Utopia - Too Many Chili-dogs! : r/gaming

Best 3d engines/games/demos for Sonic?

Fan Group Creates Open-World Sonic Video Game - Gameranx

Sonic Utopia Is The Open-World Sonic Game You Never

Freedom Isn't Free! - A Video Games Video - Dueling Analogs