Video games charity SpecialEffect is holding its annual One Special Day event today (Friday, October 1st) including a Steam sale for the first time ever.

The charity event has the backing of over 80 games companies, including Hello Games, Devolver Digital, Sega and Supercell with all or some of money raised being given to SpecialEffect. Content included in the Steam sale include No Man's Sky, Slime Rancher and Two Point Hospital. There's also One Special Day merchandise for sale, as well as a game jam and a football match between Microsoft's Rare and Playground studios.

"One Special Day is such an important fundraising event for SpecialEffect, particularly with the ever-increasing demand for our services," SpecialEffect founder and CEO Dr Mick Donegan said.

"The support the event receives from the games industry is absolutely vital in making sure we can continue to reach every disabled person that needs our help. The backing we receive from the games industry and their gaming communities is the cornerstone of our fundraising and, without it, we simply couldn’t continue our work of bringing a better quality of life to so many people across the world."

SpecialEffect supports thousands of disabled people every year and provides them with the means to enjoy video games no matter what.

You can find out more at the One Special Day website.