Ablegamers http://www.ablegamers.com evaluates game software, hardware and devices. Games are rated on scales for visual, auditory and movement requirements.
Ablegamers have released their annual “Holiday Gift guide for disabled gamers”. http://www.ablegamers.com/Disabled-Gamers-General-News/ablegamers-holiday-gift-guide-for-disabled-gamers-2012.html
DAGERS http://dagersystem.com/ evaluates games to characterize the accessibility of the video game software. The DAGERS system considers how limitations in auditory, visual and fine motor performance limit being able to advance through the game. DAGERS currently rates games as inaccessible, partly, thoroughly accessible or barrier free. DAGERS have also produced a “Holiday accessibility buying guide” http://dagersystem.com/index.php/features/45-featured/117-holiday-buying-guide