Graphics and video
For a list of games, see games with ultra-widescreen support.
Ultra-widescreen is a term that refers to widescreen resolutions with an aspect ratio roughly wider than 2:1, and often marketed as "21:9". The term is most commonly applied to a 2.37:1 (64:27; ex. 2560x1080) aspect ratio, but refers also to nearby aspect ratios such as 2.4:1 (ex. 1920x800) and 2.13:1 (ex. 1920x900); in contrast to the more widely supported 1.78:1 (16:9; ex. 1920x1080).
Provided a game does not properly support ultra-widescreen resolutions, it can often still be played at a pillarboxed 16:9 or 4:3 resolution on most ultra-widescreen monitors. This may involve using GPU scaling to prevent stretching to fit the screen, and in some cases using a custom resolution.
The most commonly used ultra-widescreen resolution is 2560x1080.