Welcome!

Open Sonic is a free open-source game based on the "Sonic the Hedgehog" universe. It introduces a different style of gameplay called cooperative play, in which it's possible to control 3 characters simultaneously. Unlike most similar games, Open Sonic provides a greater level of interaction between the player and the levels. It's more than just a jump'n'run; the user must come up with some strategy in order to get through the levels.

Open Sonic is available for Windows, Linux, Mac OS X (experimental) and Dreamcast. The latest release is 0.1.2 (July 23rd, 2009). Main features:

• No installation is required + small download
• Sonic-style physics (360° movement engine)
• Available in 4 languages: English, Portuguese, Spanish and French
• 2 levels + innovative items + extras
• You can make your own levels using the embedded level editor
• Good performance even on old computers*

This game is in development. We're looking for people who can make original graphics - we want to replace the "ripped" content by original user-made resources. If you're interested, please contact us.

Stay tuned in our blog to know how the game is evolving!

The code of this game is licensed under the GPLv2 (the gfx/sfx are not). This game is not endorsed, produced or affiliated with Sega, or any of its subsidiaries. Sega did not make this. This is a non-profit unofficial fangame based on the "Sonic" universe and should be categorized under the same criteria as fanart or fanfiction. The creator of this game is not liable for any and all damages you incur while playing. Sonic, Tails, Knuckles, Eggman, and all related characters, objects and locations are property of their respective owners. All other copyrighted characters contained within belong to their own respective companies and organizations.