Mac Walters is a video game developer best known for his work at BioWare as a writer on the Mass Effect series.

[2] As they began work on Andromeda, Walters encouraged the team to return to a creative place where "anything is possible", rather than simply making Mass Effect 4.

[4] During this time, Walters also penned a novel to bridge the narrative events of the Mass Effect trilogy and Andromeda.

[2] In November 2023, NetEase announced the establishment of Worlds Untold, a new studio in Vancouver, Canada led by Walters.

[10][11][12] In November 2024, NetEase withdrew its funding from Worlds Untold, resulting in the studio "pausing" its operations.