taking a specific route through the choices. Art Telltale's art director, Derek Sakai, led the creation of the characters and their expressions. Sakai was told to not use symmetric expressions to help create more human-like expressions and help improve the realism of the game. Sakai drew inspiration from his own daughter to develop the character of Clementine. Soundtrack On September 10, 2019, an official soundtrack album of Jared Emerson-Johnson's B.A.F.T.A. Award nominated score to the game was released for digital download and on streaming services, with a special edition set of vinyl lps due to release shortly thereafter. Multi-platform The game engine used for The Walking Dead was optimized so as to facilitate the multi-platform nature of the release, which included PCs, gaming consoles and mobile devices, with the aim of minimizing the work in porting. However, the development team still focused on achieving the best control schemes for each platform; in particular, the touchscreen control scheme on mobile devices was based on experience gained during the development of the Back to the Future game. A major challenge through the development of all five episodes was the save game file format, which they continually had to update and fix across platforms, in some cases causing existing save files to become invalid. Unique fixes applied for earlier episodes on one platform would reappear as problems in later ones. Connors stated that for the next series, they would be "a lot more diligent" on the save game issues, using data gathered during the first season development and information on how players would approach the game. In previous series developed by Telltale for multiple platforms, they had had difficulty in timing releases to reach all players at the same time. One aspect of this was due to issues encountered on the Xbox Live Arcade service for the Xbox 360; for small publishers, like Telltale at the time, they had to arrange with larger publishers to allocate a slot within the Arcade's release schedule several months in advance, making it difficult to coordinate with releases on other platforms. After the success of the Back to the Future and Jurassic Park games, however, Telltale were able to officially achieve a publisher status on Xbox Live, giving them more control of the release schedule. Furthermore, they had designed the game such that the second through fifth episodes would be treated as downloadable content, allowing them to