Epic Games has released a new limited time game mode in Fortnite Battle Royale that is a 50 vs 50 team battle. (justpushstart.com)
The Rite of Champions, which you can play now through May 31st, involves a 4v4 limited - time game mode called Carousel of Death. (pcgamesn.com)
Real time game modes (Grabell, as an example) will suffer most from visual accessibility issues where as more sedate games such as Alphabetickell would be more appropriate if players can make out the individual letters with inspection. (meeplelikeus.co.uk)