Half-Life: Opposing ForceMods / Single player
Half-Life: Opposing Force mods
Half-Life: Opposing Force single player mods
Everything filed under single player by its own author, ordered by how much it is used.
44 single player mods · newest update 24 Mar 2026
44 single player mods
- Half-Life: Opposing Force Improvementsby nonsense-meSingle Playerupdated 7 mo ago
- Vanilla Map Fixesby marigi64Single Playerupdated 23 mo ago
- Italyby Ghost3115247Single Playerupdated 2 y ago
- Opposing Force: Revised Difficultyby KayoshieSingle Playerupdated 2 y ago
- Worlds Collide Loud Boxes Fixby ShadowysnSingle Playerupdated 3 y ago
- Azure Sheep Just Barney cameoby ShadowysnSingle Playerupdated 3 y ago
- Fallback, Fire, and Iceby GuestSingle Playerupdated 3 y ago
- The Xen Campaignsby GuestSingle Playerupdated 3 y ago
- Ground Zeroby GuestSingle Playerupdated 3 y ago
- A Soldiers Taleby GuestSingle Playerupdated 3 y ago
- Ground Zero 2 - Falloutby GuestSingle Playerupdated 3 y ago
- Retaliationby GuestSingle Playerupdated 3 y ago
- Dark Operationsby GuestSingle Playerupdated 3 y ago
- Snowy Rock, Part 1by DemalitionSingle Playerupdated 3 y ago
- Bootleg Squadrogby GuestSingle Playerupdated 3 y ago
- Double Helixby GuestSingle Playerupdated 3 y ago
- Supernova Space Stationby GuestSingle Playerupdated 3 y ago
- Mission Impossibleby GuestSingle Playerupdated 3 y ago
- Klabautermannby GuestSingle Playerupdated 3 y ago
- Without Doubtsby GuestSingle Playerupdated 3 y ago
- Warzoneby GuestSingle Playerupdated 3 y ago
- Operation: Sandblastby GuestSingle Playerupdated 3 y ago
- Little Skyscraper of Horrorsby GuestSingle Playerupdated 3 y ago
- Footholdby GuestSingle Playerupdated 3 y ago
- Mechanized Death: An Army of Noneby GuestSingle Playerupdated 3 y ago
- Space Disaster, Part 1by DemalitionSingle Playerupdated 3 y ago
- Fallen Chopperby GuestSingle Playerupdated 3 y ago
- Necromancer's Mapsby GuestSingle Playerupdated 3 y ago
- Black Bag Operationsby GuestSingle Playerupdated 3 y ago
- Little Escapeby GuestSingle Playerupdated 3 y ago
- Firing Rangeby GuestSingle Playerupdated 3 y ago
- Friendly Fireby GuestSingle Playerupdated 3 y ago
- EPRST!by GuestSingle Playerupdated 3 y ago
- Underhallsby GuestSingle Playerupdated 3 y ago
- Postalby GuestSingle Playerupdated 3 y ago
- Zombiesby GuestSingle Playerupdated 3 y ago
- J2000by GuestSingle Playerupdated 3 y ago
- You Dieby GuestSingle Playerupdated 3 y ago
- Scientist Rescueby GuestSingle Playerupdated 3 y ago
- Battleby GuestSingle Playerupdated 3 y ago
- Saving Private Towerby specmanSingle Playerupdated 4 y ago
- Under the Black Moon Campaignby YellowJelloSingle Playerupdated 3 y ago
- Campaign Part 1by Pyromancer12Single Playerupdated 3 y ago
- Shepard's adventuresby noSICKSingle Playerupdated 15 y ago
44 single player mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.