Half-Life: Opposing Force
Half-Life: Opposing Force mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
739 mods · newest update 18 Sep 2026
- Attrition Map Packby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Overloadby GuestMaps / Deathmatchupdated 3 y ago
- Kevlarby GuestMaps / Deathmatchupdated 3 y ago
- Octolabby GuestMaps / Deathmatchupdated 2 y ago
- Dustby GuestMaps / Deathmatchupdated 3 y ago
- Cradleby GuestMaps / Deathmatchupdated 3 y ago
- DoubleCrossby GuestMaps / Deathmatchupdated 3 y ago
- Hasteby GuestMaps / Deathmatchupdated 20 mo ago
- Satelliteby SuparsonikMaps / Deathmatchupdated 19 mo ago
- Treatmentby GuestMaps / Deathmatchupdated 16 mo ago
- The Hillby GuestMaps / Deathmatchupdated 3 y ago
- Homesteadby GuestMaps / Deathmatchupdated 3 y ago
- The Caveby GuestMaps / Deathmatchupdated 3 y ago
- 2differenthousesby GuestMaps / Deathmatchupdated 18 mo ago
- Strong Holdby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Supplyby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Subterraby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Still Watersby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Rage/Shockitby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Sling Shot CTFby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Furrball/Fuzzballby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Mirageby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Two Worldsby Ring-A-Ding RampageMaps / Capture the Flagupdated 14 mo ago
- Red Giantby Ring-A-Ding RampageMaps / Capture the Flagupdated 20 mo ago
- Wormholeby kungfusquirrelMaps / Capture the Flagupdated 20 mo ago
- Disposal Deluxeby GuestMaps / Deathmatchupdated 3 y ago
- Sling Shotby GuestMaps / Deathmatchupdated 3 y ago
- Requitalby GuestMaps / Deathmatchupdated 3 y ago
- Cataclysmby GuestMaps / Deathmatchupdated 15 mo ago
- Arcane Templeby GuestMaps / Deathmatchupdated 3 y ago
- Base2Fite4! CTFby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Base2Fite4!by GuestMaps / Deathmatchupdated 3 y ago
- Cotton Candyby GuestMaps / Deathmatchupdated 3 y ago
- op4_real_unreal_CTC7777_by GuestMaps / Deathmatchupdated 3 y ago
- Further Data Pack Mapsby Ring-A-Ding RampageMaps / Map Packsupdated 3 y ago
- Fractureby GuestMaps / Deathmatchupdated 3 y ago
- Terrainparkby GuestMaps / Deathmatchupdated 20 mo ago
- Stalkyard CTFby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Tau Factoryby GuestMaps / Deathmatchupdated 3 y ago
- Stalkyardby GuestMaps / Deathmatchupdated 3 y ago
- op4_park_sg - No Lag Parkby GuestMaps / Deathmatchupdated 3 y ago
- Lost Village 2by GuestMaps / Deathmatchupdated 20 mo ago
- 13th Flawby GuestMaps / Deathmatchupdated 15 mo ago
- Snocoreby GuestMaps / Deathmatchupdated 3 y ago
- op4_tkktoxic :: Thrill Kill Kult : Toxicby GuestMaps / Deathmatchupdated 3 y ago
- op4_tkktemple :: Thrill Kill Kult : Templeby GuestMaps / Deathmatchupdated 3 y ago
- op4_tkksnipe :: Thrill Kill Kult : Snipeby GuestMaps / Deathmatchupdated 3 y ago
- op4_tkkfaces :: Thrill Kill Kult : Facesby GuestMaps / Deathmatchupdated 3 y ago
739 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.