Here are some links to other sites you may find useful. There's a little of everything here, and more resources will be added in the future.
Able Gamers gives people with disabilities custom gaming setups and assistive technology that allow them to enjoy gaming like everyone else.
SpecialEffect is another great resource that provides adaptive gaming technology to people with disabilities.
The Game Accessibility Conference started in 2017, and is now an annual event during the Monday of the Game Developers Conference (GDC) in San Francisco. It is currently a one-day conference deveoted exclusively to game accessibility. After each year's conference, all sessions are archived on their YouTube channel as well.
This site is a great resource for game developers on making their games more accessible to people with all abilities.
Audiogames.net is the source for all things audio gaming. It contains a comprehensive directory of audio games for all platforms, and an active forums community.
AppleVis is The site for all things Apple Mac and IOS. It has an accessible app directory for both Mac and IOS, podcasts and tutorials, and an active forum community.
One of the largest game developers has officially created an accessibility hub for information on their games' accessibility, and for gamers to actively participate in accessibility features in current and upcoming EA games.
This site is devoted to everything accessibility at Microsoft, including accessibility for Windows 10 and XBOX. This is a great resource for both users and developers.
Apple includes accessibility features in all of its products like the Mac, IOS devices, and Apple TV. This site is devoted to everything Apple accessibility.