d9917715_ccessibility_of_computer_games__Title
[Author] Shari Trewin, Vicki L. Hanson, Mark R. Laff and Anna Cavender [Year] 2008 [Abstract] PowerUp is a multi-player virtual world educational game with a broad set of accessibility features built in. This paper considers what features are necessary to make virtual worlds usable by individuals with a range of perceptual, physical, and cognitive disabilities. The accessibility features were included in the PowerUp game and validated, to date, with blind and partially sighted users. These features include in-world navigation and orientation tools, font customization, self-voicing text-to-speech output, and keyboard-only and mouse-only navigation. We discuss user requirements gathering, the validation study, and further work needed. [Title] 
PowerUp: an accessible virtual world
Game Accessibility - The accessibility of computer games
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