After 14 years and 34 games, Telltale Games is apparently dropping its Telltale Tool engine in favor of the widely-used Unity engine.
Multiple sources have told Variety that Telltale Tool is on the way out. Its last outing will be The Walking Dead: The Final Season, set to release its first episode on August 14. After this, the first game to use the Unity Engine will be Telltale’s Stranger Things project.
Source: IGN.com Telltale Is Reportedly Ditching Its Almost 15 Year-Old Engine