Half-Life Modifications
Custom/User-created Modifications
Action Half-LifeBattlegrounds
Black Ops
Black Silla
Blue Shift Coop
Cry of Fear
Day of Defeat
Desert Crisis
Escape from Black Mesa
FireArms
Flat-Life
Front Line Force
Fusion Assault
Half-Life Rally
Half-Life: Dreamcast
Hostile Intent
Master Sword: Continued
Mistake
Move In
Nanobotics
Natural Selection
Opposing Force Coop
Opposing Force Redux
Paranoia
Pirates Vikings and Knights
Project TimeLess
Public Enemy
Ragnarok Arena
Resident Evil: Cold Blood
Science and Industry
Scientist Slaughterhouse
Sven Co-Op
The Specialists
The Wastes
Tour of Duty
Underworld Bloodline
Weapon Edition
Zion Warcy
