# mutator

> English word · Noun · IPA /ˈmjuteɪtɚ/

## Definitions
1. That which causes mutation or change.
2. A setting which alters specific gameplay mechanics, such as rules, physics, or abilities.

## Etymology
From mutate + -or.
The video gaming sense likely originated in the video game Unreal Tournament (1999).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/mutator