mods
n. countablen. changes or additions made to a video game or software by the people who use it. You use these to add new features or fix problems in your favorite games.
n. user-created modifications or extensions to a software application, particularly video games. Often used to alter gameplay mechanics, graphics, or content beyond the original developer's intent.
I downloaded several mods to make the game look more realistic.
The game's active community has released thousands of mods that add new characters and levels.
While some developers embrace the creation of mods as a way to extend a title's longevity, others restrict them to protect the integrity of the competitive multiplayer environment.
Almost always used in the plural form when referring to software modifications.