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
- King of the Towerby GuestMaps / Deathmatchupdated 3 y ago
- Great Scapeby GuestMaps / Deathmatchupdated 20 mo ago
- Snark Holeby GuestMaps / Deathmatchupdated 3 y ago
- dm_bigplanetby GuestMaps / Deathmatchupdated 3 y ago
- op4_hondelulxlby GuestMaps / Deathmatchupdated 16 mo ago
- op4_dmby GuestMaps / Deathmatchupdated 2 y ago
- op4_boxdmby GuestMaps / Deathmatchupdated 3 y ago
- Ant Farm v2by GuestMaps / Deathmatchupdated 3 y ago
- EPE_Signeby GuestMaps / Deathmatchupdated 17 mo ago
- EPE_Ramboby GuestMaps / Deathmatchupdated 17 mo ago
- EPE_immeubleby GuestMaps / Deathmatchupdated 17 mo ago
- Jaakko Impola's Opposing Force DM Mapsby Ring-A-Ding RampageMaps / Map Packsupdated 17 mo ago
- Attacticalby Ring-A-Ding RampageMapsupdated 3 y ago
- Circus Maximusby Ring-A-Ding RampageMapsupdated 22 mo ago
- Unstableby Ring-A-Ding RampageMapsupdated 3 y ago
- Worldspawnby GuestMaps / Deathmatchupdated 16 mo ago
- Bigby GuestMaps / Deathmatchupdated 3 y ago
- Cuccoosby GuestMaps / Deathmatchupdated 3 y ago
- op4_bm_hospital_b2bby GuestMaps / Deathmatchupdated 3 y ago
- op4_killbox04by GuestMaps / Deathmatchupdated 3 y ago
- op4_duel42by GuestMaps / Deathmatchupdated 3 y ago
- Yardby GuestMaps / Deathmatchupdated 3 y ago
- Zig Zagby GuestMaps / Deathmatchupdated 3 mo ago
- op4_bazooka3by GuestMaps / Deathmatchupdated 3 y ago
- Boot Shineby GuestMaps / Deathmatchupdated 3 y ago
- KribRatsby GuestMaps / Deathmatchupdated 3 y ago
- Lab 17 Packby GuestMaps / Deathmatchupdated 3 y ago
- 3x-feuer - xxx-fireby GuestMaps / Deathmatchupdated 19 mo ago
- 2towersby GuestMaps / Deathmatchupdated 3 y ago
- 2toobby GuestMaps / Deathmatchupdated 3 y ago
- 2mtby GuestMaps / Deathmatchupdated 3 y ago
- 1 on 1by GuestMaps / Deathmatchupdated 3 y ago
- Daydreamby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- The Early Shiftby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Black Mesaby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Hysteriaby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Black Mesa Transit Junctionby Ring-A-Ding RampageMaps / Capture the Flagupdated 20 mo ago
- Test Labsby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Trenchby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Moonlitnight's Cartoon CTF Packby Ring-A-Ding RampageMaps / Map Packsupdated 14 mo ago
- Wellby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- The Yardby GuestMaps / Deathmatchupdated 3 y ago
- Crowstakby GuestMaps / Deathmatchupdated 3 y ago
- Slot1by GuestMaps / Deathmatchupdated 3 y ago
- Micromeanieby GuestMaps / Deathmatchupdated 3 y ago
- Bootby GuestMaps / Deathmatchupdated 3 y ago
- Boot CTFby Ring-A-Ding RampageMaps / Capture the Flagupdated 3 y ago
- Yardokby Ring-A-Ding RampageMaps / Capture the Flagupdated 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.