Having been broken apart by the evil Dr. Eggman, it�s up to Sonic to put the pieces of the world back together again by retrieving the power of the chaos emeralds! In doing so, Sonic will find himself in a race against time and faced with an unusual situation that will challenge him in ways never before seen. Both day and night play different, yet important, roles in Sonic�s newest quest� as the sun sets, a new adventure awakens. By completing a wide variety of action-packed stages, spanning the seven broken continents of the world, gamers will need to unleash Sonic�s amazing abilities to save the world, and himself!


  • Tight Navigation and Speed Control: A variety of special maneuvers help you move quickly through tricky situations. "Quick Step" allows you to dodge obstacles by instantly moving left or right without losing speed; "Speed Drift" will maintain top speeds through turns, while "Sonic Boost" will accelerate you to super speeds!
  • Powerful New Game Engine and Cinematic Graphics: Sonic Unleashed delivers a revolutionary gameplay experience, combining picturesque graphics with seamless transitions between 3D and classic 2D perspectives.
  • Enhanced and Expanded Environments: Many unique and fascinating continents let you explore a variety of environments - sprint across cobbled streets, race through lush jungles and much more.
  • Flexible Path Navigation: Choose from multiple pathways in Sonic's massive new playground. Each unique route offers different encounters with varying rewards and obstacles.

This game is also known as Sonic World Adventure in Japan.

User Reviews


Classic and Modern Sonic the Hedgehog join forces in Project Sonic 2017

From the team behind Sonic Colors and Generations

Jul 26 at 10:12am, by Maxfield Navarro | 3 comments
Sonic Team confirms new Sonic game ahead of 25th Anniversary event

When you want something done right...

Jun 23 at 12:21pm, by Leo Chan | 9 comments
Sega fires up PSN & Virtual Console Christmas sale

40 percent off digital download games and DLC, including Valkyria Chronicles missions

Dec 22, 2009, by Leo Chan | 0 comments
Sega: Sonic Unleashed same in all regions, misunderstanding

Japan delay not related to game itself

Nov 11, 2008, by Sean Ridgeley | 4 comments

Latest Activity

Jun 13, 15 10:40pm
added 137 new concept art
Feb 25, 15 12:33pm
Ehhhhh SonicUnleashed
Jan 30, 15 11:22pm
My favorite Sonic game ever! :D SonicUnleashed
Apr 19, 13 8:07pm
The franchise is officially dead to me. And I have Sonic Unleashed to thank for that. Thanks for ruining something from my childhood Sega. SonicUnleashed
Apr 5, 13 1:01pm

I can understand why people would want to criticize this, but why exactly? Is it...

Sep 26, 11 4:29pm
In my opinion, this i the best video game in the universe!!! SonicUnleashed
nasty nappa
Jun 25, 11 9:40am
this game is the worst sonic game yet SonicUnleashed
May 7, 11 1:58pm
Oct 10, 10 11:53am

Developer: Sonic Team
Publisher: Sega

Now here's a great example of how to get your...

Aug 21, 10 2:46pm

Course, we all know the story by now; you're either an old school fanboy who hates...

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Release Dates
  • North America:
    • Dec 9, 2008 (PS3)
    • Nov 18, 2008 (XBOX360)
  • Japan:
    • Feb 19, 2009 (PS3)
    • Dec 18, 2008 (Wii)
  • Europe:
    • Dec 19, 2008 (PS3)
    • Nov 28, 2008 (XBOX360)
  • Australia:
    • Dec 18, 2008 (PS3)
    • Nov 27, 2008 (XBOX360)
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Collections Summary
541 own | 60 want | 106 completed