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
- X-bounceby DrogolhusMaps / Deathmatchupdated 3 mo ago
- Scaling HUD for Opforby PostScriptSprites / HUDupdated 3 mo ago
- Of0a0 Consistency fix and Skybox fixby nonsense-meMapsupdated 5 mo ago
- Timeline-Accurate Skyboxes + OF1A2 skybox fixby KrisTrviksMapsupdated 5 mo ago
- The Killing Machineby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- The Rageby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Manor v2by Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Koreaby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Communications Centerby Ring-A-Ding RampageMaps / Deathmatchupdated 6 mo ago
- Cupby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Blackcoldby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Hammertime!by Dr. KnowMaps / Deathmatchupdated 6 mo ago
- op4_bostaby RomeoandrasMaps / Deathmatchupdated 6 mo ago
- Panzi Barby Dr. KnowMapsupdated 6 mo ago
- Hammertimeby Dr. KnowMapsupdated 6 mo ago
- Urban 2 : Downtown Madnessby Dr. KnowMapsupdated 6 mo ago
- Elongationby Dr. KnowMapsupdated 6 mo ago
- Longestby Dr. KnowMapsupdated 6 mo ago
- GibcityDM4 Remasterby Dr. KnowMapsupdated 6 mo ago
- Flibbertigibbetby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Highnoonby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Joyrideby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Das Groghäusby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Amen Nationby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Crackhouseby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- 52villabachoby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- 52puenteby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Scary_1by Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Rustyby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Tensionby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- The Other Warehouseby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Turkeyby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Dust2 Unlimited 2013by Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Santoriniby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Mega Dustby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Rexby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Rats Lifeby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Hondurasby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Big0nes DM Samplerby Dr. KnowMaps / Deathmatchupdated 5 mo ago
- Centroby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Calypsoby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Yutaniby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Haunted Keepby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- 52alpsby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Crossfire '04by Ring-A-Ding RampageMaps / Deathmatchupdated 6 mo ago
- Damnationby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Banana Mansionby Dr. KnowMaps / Deathmatchupdated 6 mo ago
- Olvidada_Muereteby Dr. KnowMaps / Deathmatchupdated 6 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.