Mutator

A Mutator is a kind of mini-mod that can be applied to games in the Unreal series. Although, compared to conventional mods, changes made to the game are small, mutators can have a large impact on gameplay. For instance Instagib is sometimes considered a whole new gametype.

Unreal Championship/Unreal Tournament 2003/Unreal Tournament2004
(*) Available in UT2003 through Epic Bonus Pack. (**) Available in UT2004 through ECE Bonus Pack or Mega Pack.