Sega

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

Gameplay Video

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

Is an online Flash game released in 2008 to promote Sonic Chronicles: The Dark Brotherhood. The game was featured on the Sonic Chronicles: The Dark Brotherhood's official websites before they were shut down.
The player controls Sonic, who can interact with the characters and the environment in order to read character bios, trailers, story tidbits, etc. In this game, Sonic will automatically follow the cursor. which is a virtual Nintendo DS stylus for the mouse. Sonic can also collect Rings in order to unlock hidden media, and is able to visit Green Hill Zone and Voxai Colony Beta. The game has 75 Rings in total hidden around the two environments (some of which are hidden behind scenery in the areas). Obtaining enough Rings will grant the player two wallpapers as rewards, as well as a set of icons that are granted when all the Rings are collected.

Sonic Chronicles: The Dark Brotherhood

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

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

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

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

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

Use the LEFT & RIGHT arrow keys on your keyboard to direct
Sonic in the direction of the rings. Try to collect at least 70 to
enter the competition. Avoid Mines as these will slow you down
and reset your score to O. Good Luck!

Sonic Heroes Competition

Gameplay Trailer

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

Sega Browser Games