When players begin Sonic Speed Simulator on Roblox, they'll find that they can't play as Sonic right away and that he takes some grinding to unlock.

Sega partnering with Gamefam to bring Sonic the Hedgehog to Roblox A new online Sonic multiplayer game is free and available to play on Roblox right now.

Red Star Rings are the main currency of Sonic Speed Simulator on Roblox. They are used for everything from fusing Chao and Trails, purchasing and leveling up Characters, getting sets of your ...

"Sonic Speed Simulator is the fastest game in Roblox and features everyone's favorite speedster, Sonic the Hedgehog," reads the official synopsis.

Sonic Speed Simulator for Roblox adds new characters every other update, and Knuckles the Echidna wraps up the classic character roster nicely.