- 2 X Y Z
- 6 X-Cellerator
- 2 X-COM Enforcer
- 5 X-MAN (XPW)
- 27 X-Raided
- 2 X-TERMINATOR(VoRTeX)
- 2 X.A.N.A.
- 2 X22887
- 2 X3M
- 10 Xankon
- 13 Xanx
- 6 Xanx..'Q~
- 3 Xanx..Q~
- 2 Xanx..~Q
- 5 Xanx~Q
- 2 Xavious
- 9 Xcrari
- 2 XDude
- 2 XeivMaN
- 4 Xeno
- 12 XenoAisam
- 2 Xenoyia
- 3 Xerdryn
- 4 Xiner
- 29 Xiphon
- 5 Xiu
- 5 xKc Massacre
- 9 XLucifer
- 2 Xoleras
- 2 Xolo
- 3 XpanD - with the help of many others
- 6 xqt
- 2 xray
- 2 XS Vehicles
- 4 Xsjado & HumaK
- 2 Xuhate
- 7 XxDeathmakerxX
- 2 xXx (development)/CandyMan (request)
- 2 Xxyz
- 2 Xyx
- 22 XYZ 8000