Roblox Sonic Speed Simulator is a running game where you will be building up your top speed so that you can go fast! The game ...

An update to the officially licensed Sonic Roblox game, Sonic Speed Simulator, will add a highly anticipated character in a new event.

Roblox 's Sonic Speed Simulator has you running around the areas you've come to know and love from past Sonic titles, collecting Rings and leveling up to increase your speed.