Sega

Thirteen4

Sonic Heroes Puzzle is a browser game released in 2004 to promote Sonic Heroes. The game appeared on the Sonic Heroes game websites before they were later shut down.

Sonic Heroes Puzzle

Gameplay Video

Sonic the Broad Jump is a browser game released on Sonic Channel in 2005. It was accessible on the Sonic Channel website before it was later taken down.

Sonic the Broad Jump

LEGO

Power through obstacles, bounce off walls, defeat Dr. Eggman and save the animals in trouble. Gotta go faster!

LEGO Sonic the Hedgehog: Speed Sphere Challenge

Cartoon Network

Sonic Boom: Link 'N Smash! is a puzzle browser game based on the Sonic Boom television series and was published on the Cartoon Network website.

Sonic Boom: Link 'n Smash

NHN PlayArt

Valkyria Chronicles D, also known as 戦場のヴァルキュリアドユーエル, or Senjou no Valkyria DUEL, is a mobile game released only in Japan. It was a free browser-based/iOS game, with radically different gameplay, focusing more on character management of war troops similar to sports team management simulations. It was released on July 26, 2012 and shut down on April 22, 2015.

Senjo no Valkyria Duel

Mediatonic

The Sonic the Hedgehog Level Creator was an official flash Sonic game on the PlaySEGA Website.

Sonic the Hedgehog Level Creator

Sonic Rivals Dash is a browser game published in 2006 to promote Sonic Rivals. The game was featured on the Sonic Rivals websites before they were closed.

Sonic Rivals Dash

Flash game published in 2006 to advertise Sonic the Hedgehog. The game was available on the websites advertising Sonic the Hedgehog until they were taken down.

Sonic the Hedgehog: Chaos Crush

Flash game released to promote Shadow the Hedgehog.

Shadow the Hedgehog Flash

4Kids Entertainment

Shadow XS is a Flash game that was available on the official 4Kids website. You play as "Shadow Xs", and have to get to the end of the level while collecting rings and defeating enemies. It is a version of Sonic XS, with a different level layout.

Shadow XS

Sonic XS is a Flash game that was available on the official 4Kids website. You play as "Sonic Xs", and have to get to the end of the level while collecting rings and defeating enemies.

Sonic XS

A browser game released in 2004 to promote Sega Superstars. The game was featured on the official websites for Sega Superstars before they were shut down

Sonic the Hedgehog

Web browser game based on the special stages of Sonic 3D Blast used for contests on the Sega website.

Sega Browser Games