A new Sonic mobile game has been leaked called Sonic Runners Adventure, an apparent successor/sequel to the controversial Sonic Runners that was released globally in 2015 but shut down in 2016. The most notable difference between the original and this new game is the change of developers, Sonic Runners Adventure being handled by Gameloft, a studio that produces miscellaneous mobile games. Sonic Runners Adventure was originally leaked in a dedomil.net forum post, further supported by the Gameloft website having a customer support section for the game.
The support page in particular goes into detail over different aspects of the game. A notable change is that online is not mandatory, only being needed at launch and to access external links, unlike it’s predecessor Sonic Runners where online is needed at all times. Another change is that characters can be directly purchased with Rings, while Sonic, Tails, and Knuckles are unlocked automatically by playing through the storyline. Characters are also divided up by three categories, Hero, Dark, and Chaotix, each category having a unique skill that triggers after collecting 300 rings. There are also three different ways the game is played. Finite where the goal is to simply reach the end, Looped where you race around a short level with the goal of reaching the end of the last lap, and Infinite where a level continuously plays until you clear a certain objective.
No word has been officially stated by SEGA, but stay tune for more information to likely drop of Sonic Runners Adventure in the future.