There are several games that can be played by people with a physical disability. These can be categorized as
1) games not specifically designed to be accessible (mainstream video games) and
2) games specifically designed to be accessible (one switch games).
Mainstream Video Games
Many mainstream video games are more or less accessible for gamers with a physical disability, usually using special hardware. The most advanced hardware interfaces are mouth-controllers and head- or eye-trackers. Besides these controllers, alternative switch interfaces are used, which enable larger buttons or (custom) grouped buttons. Two good starting points for buying alternative game controllers areOneSwitch.org.uk and Quadstick.
One Switch Games
For gamers with a severe physical disability the number of controls might be limited to just one or two buttons. There are games specifically designed to be played with just one button. These games are often referred to as “one-switch”-games or “single-switch”-games. Many early arcade games actually used only a few buttons but as games grew more complex, the number of controls increased (a good example is this article on the evolution of the Nintendo controller). For instance, the Playstation 2 controller consists of 15 buttons and two analog sticks. Unfortunately there are no guidelines for designing game accessibility for physically disabled gamers.
Remappable button configuration
One way to make games more accessible is to give gamers the option to remap their controls. One-handed gamers for example will be able to reconfigurate the buttons to their liking, putting the buttons more used closer than others.
- The largest resource on gaming one switch games is Oneswitch.org.uk. This website offers reviews of games that can be played using a minimal set of buttons and a download section with many one-switch games. One Switch also offers a section dedicated to one handed Controllers to buy.
- Ablegamers.com is a website that looks to bring mainstream games to the disabled community.
- Broadenedhorizons offers a variety of controllers for gamers with a disability.
- Quadstick also offers a variety of controllers for gamers with a disability.
- Evilcontrollers offers different controllers for gamers with a disability.
- Naturalpoint makes headtrackers.
Check out this article about a one-armed gamer.