In a surprising turn of events, the Teamfight Tactics (TFT) community received news that Stephen "Mortdog" Mortimer, a pivotal figure in the development of TFT, has officially announced his departure from Riot Games after nearly ten years.
This announcement came shortly after Mortdog returned from an extended sabbatical that began in April 2026. Before taking this break, he informed the community that he would be stepping back from TFT activities until July. However, upon his return, he delivered an emotional message that resonated deeply with players.
A Key Figure in TFT's Development
During his tenure at Riot Games, Mortdog held the position of Senior Game Design Director and was the Lead Gameplay Designer for Teamfight Tactics since the game's launch in 2019. His contributions were instrumental in making TFT one of the most popular strategy games globally, boasting millions of active players.
Connecting with the Community
Beyond his design responsibilities, Mortdog was known for his close ties to the community. He frequently hosted live streams, discussing the latest patches, explaining balance changes, and answering players' questions directly. This engagement made him a respected figure among fans.
Reflections on a Decade
In his farewell message, Mortdog reflected on his nearly ten-year journey with Riot, expressing gratitude for the experiences he had during his time there. "I honestly thought this journey would last longer, but sometimes circumstances change," he stated. He described his role as a dream job, allowing him to design, balance, lead a team, build a community, stream, and even cast events.
What’s Next for Mortdog?
Mortdog extended his heartfelt thanks to colleagues and loyal players who have supported him throughout his career. He emphasized the importance of the community's support, stating that he will always cherish the moments shared with them. Despite leaving Riot Games, Mortdog confirmed that he is not stepping away from the gaming industry entirely. During his sabbatical, he began developing his own indie game, which is currently 20 to 30 percent complete and has been tested by early players.
His departure comes at a critical time for Riot Games, especially with the announcement that TFT will transition to Unreal Engine in Set 18 and gain a standalone client for PC by late 2026. This significant change is expected to serve as a new foundation for the long-term development of TFT, even as it moves forward without its iconic leader.
Source: https://www.esports.id/read/mortdog-tinggalkan-riot-games-setelah-hampir-10-tahun-berkarier-18965



