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
- Bunkerby GuestMaps / Deathmatchupdated 9 mo ago
- PS2 Deathmatch Maps for Opposing Forceby DrogolhusMaps / Map Packsupdated 8 mo ago
- Piratesby GuestMaps / Deathmatchupdated 9 mo ago
- Overpassby DrogolhusMaps / Deathmatchupdated 8 mo ago
- Macrocampusby GuestMaps / Deathmatchupdated 9 mo ago
- Home Warby GuestMaps / Deathmatchupdated 9 mo ago
- c4ke_cubeby GuestMaps / Deathmatchupdated 9 mo ago
- dm_seal3by CharlesTheSniperMaps / Deathmatchupdated 10 mo ago
- Roundhouseby DrogolhusMaps / Deathmatchupdated 8 mo ago
- Unique Clipboard Scientistby nonsense-meMapsupdated 11 mo ago
- Psychopomp MapPack - Final Locationsby Gravn12Maps / Map Packsupdated 12 mo ago
- Adrian Shephard 4K Upscaled Menu and Custom Fontby SchraenkiMenu Backgroundupdated 12 mo ago
- Psychopomp MapPack: Transient Locationsby Gravn12Maps / Map Packsupdated 13 mo ago
- 789 Custom Mappackby GuestMaps / Deathmatchupdated 13 mo ago
- op4_base3_5by GuestMaps / Deathmatchupdated 13 mo ago
- op4_base2_5by GuestMaps / Deathmatchupdated 13 mo ago
- Haunted Houseby GuestMaps / Deathmatchupdated 13 mo ago
- Op4_Bigred2by FrissiMaps / Deathmatchupdated 13 mo ago
- op4ctf_uk_arenaby Mimou2222Maps / Capture the Flagupdated 14 mo ago
- Warehouseby GuestMaps / Deathmatchupdated 14 mo ago
- Dust 2by GuestMaps / Deathmatchupdated 14 mo ago
- Shock Testby Ring-A-Ding RampageMaps / Other/Miscupdated 14 mo ago
- Sniper Zoneby GuestMaps / Deathmatchupdated 14 mo ago
- Tractionby GuestMaps / Deathmatchupdated 14 mo ago
- Washout 2010by GuestMaps / Deathmatchupdated 14 mo ago
- Vincentby Ring-A-Ding RampageMapsupdated 14 mo ago
- yard_2012by Ring-A-Ding RampageMapsupdated 14 mo ago
- op4_baulkby DrogolhusMaps / Deathmatchupdated 15 mo ago
- [ESP]Half-Life Opposing Force: Texturas al españolby Lockey026Maps / Other/Miscupdated 15 mo ago
- Mars_Taos7by GuestMaps / Deathmatchupdated 15 mo ago
- Flbattleby GuestMaps / Deathmatchupdated 16 mo ago
- Riverstationby GuestMaps / Deathmatchupdated 16 mo ago
- Redsandby GuestMaps / Deathmatchupdated 16 mo ago
- Squigglypuffby GuestMaps / Deathmatchupdated 16 mo ago
- Gas station steak-out [HL/OP4]by GuestMaps / Deathmatchupdated 3 mo ago
- Jungle Baseby GuestMaps / Deathmatchupdated 16 mo ago
- Consistent Daytime & Evening Skiesby FuneralPortraitMapsupdated 16 mo ago
- A-Bombby GuestMaps / Deathmatchupdated 17 mo ago
- Neighbours From Hellby GuestMaps / Deathmatchupdated 17 mo ago
- Room 17by GuestMaps / Deathmatchupdated 17 mo ago
- Tunnelsby GuestMaps / Deathmatchupdated 17 mo ago
- Nukeby Alfa1337Maps / Deathmatchupdated 11 mo ago
- Snowcampby GuestMaps / Deathmatchupdated 17 mo ago
- Rubble 2by Ring-A-Ding RampageMapsupdated 17 mo ago
- 789spongeby Ring-A-Ding RampageMapsupdated 17 mo ago
- Vertigoby GuestMaps / Deathmatchupdated 17 mo ago
- Tundraby GuestMaps / Deathmatchupdated 17 mo ago
- Homeworldby GuestMaps / Deathmatchupdated 17 mo 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.