| Mutator | Author | Info | |
|---|---|---|---|
| -=Unlimited Translocations=- | 1 mutator , 1 weapon | ||
| UltraInstagib | 1 mutator , 1 weapon | ||
| UNK Akimbo RC2 | 1 mutator , 10 weapons | ||
| Unreal[x]Weapons | 4 mutators , 5 weapons | ||
| Unreal[x]Weapons2014 | 18 mutators , 21 weapons | ||
| Unreasonable Tournament | 1 mutator , 10 weapons | ||
| UT2007 Color | 1 mutator | ||
| UT3 BestOfUnreal Part1 Beta | 4 mutators , 3 weapons | ||
| UT3 D9 Arc Generator Final | 1 weapon | ||
| UT3 D9 Assault Rifle Final | 1 weapon | ||
| UT3 Mods | 5 mutators | ||
| Ut3 Quakes Big Fing Gun | 1 weapon | ||
| UT3 RickRoller | 1 weapon | ||
| UT3Fixer P3.1 | 3 mutators | ||
| UTCompIII v1 | 1 mutator | ||
| UTCompIIIv4 Beta2 | 2 mutators | ||
| UTFusrodahReplacer | 1 mutator , 1 weapon | ||
| UTMutator_AtomRipper | 1 mutator , 1 weapon | ||
| UTMutator_Coda | 1 mutator , 1 weapon | ||
| UTMutator_SpeedMod | 1 mutator | ||
| UTNyanReplacer | 1 mutator , 1 weapon |