The Half-Life series spawned countless mods, among which many that became highly popular in the Half-Life gaming community. Some original mods, such as Counter-Strike, Team Fortress, Day of Defeat, Ricochet, The Ship and Alien Swarm (originally a mod for Unreal Tournament 2004) have been "adopted" by Valve and made into commercial games. However some mods such as Garry's Mod having been turned into commercial games remain independent. Some mods are also based on cut content, featured in the released files for Half-Life, and in the leaked files for Half-Life 2.

Some of these mods include minor or major alterations to the original game, others consist in a total conversion, i.e. made from scratch, only using the existing engine, models, sounds, textures, etc. The non-commercial mods can be downloaded for free, as they are not licensing the engine.

Notable modsEdit

The list is incomplete; feel free to complete it with other notable mods.

GoldSrcEdit

• Absolute Redemption
• Afraid of Monsters: Directors Cut
• Counter-Strike (Turned into retail games developed by Valve)
• Azure Sheep
• Black Ops
• Blue Shift: Reassignment
• Cat-Life
• Cry Of Fear
• Day of Defeat (Turned into retail games developed by Valve)
• Deliverance
• Half-Life: Visitors
• Half-Life: Zombie Edition
• Natural Selection
• PARANOIA
• Hazardous Course 2
• Peaces Like Us
• Point of View
• Ricochet (Turned into a retail game developed by Valve)
• Scientist Slaughterhouse
• Sven Co-op
• Sweet Half-Life
• Team Fortress (Turned into retail games developed by Valve)
• The Ship (Turned into a retail game developed by Valve)
• The Specialists
• They Hunger
• USS Darkstar
• Wanted
• Peaces Like Us
• Christmas Life
• Prison
• Operation Nova

SourceEdit

• 1187
• Age of Chivalry
• Awakening
• Black Mesa
• Causality Effect
• City17: Episode 1
• City 7: Toronto Conflict
• Coastline to Atmosphere
• Combine Destiny
• DayHard
• Dear Esther (Turned into a retail game)
• Dino D-Day (Turned into a retail game)
• D.I.P.R.I.P.
• Dystopia
• FakeFactory's Cinematic Mod
• Garry's Mod (Turned into a retail game)
• Eclipse
• Eternal Silence
• Flipside
• GoldenEye: Source
• Guard Duty
• Half-Life 2: Capture the Flag
• Half-Life 2: Riot Act
• Half-Life 2: Short Stories: Human Error
• Half-Life 2: Wars
• Insurgency: Modern Infantry Combat
• MINERVA
• Missing Information
• Mission Improbable
• Mistake of Pythagoras
• NeoTokyo
• Nightmare House 2
• No More Room in Hell
• Obsidian Conflict
• Operation Black Mesa
• Opposing Force 2
• Perfect Dark: Source
• Portal 1.5
• Portal: Prelude
• Portal: The Flash Version MapPack
• Tier 3 (Portal)
• Blue Portals
• Gamma Energy
• Raindrop
• Research and Development
• Rock 24
• Silent Escape
• SMOD
• SMOD: Tactical
• SourceForts
• Synergy
• Star Trek: Enterprise - Temporal Cold War
• The Citizen
• The Stargate Mod
• Titan: XCIX
• Underhell
• Water
• Weekday Warrior
• Zeno Clash (Originally planned as a mod, then made as a retail game)
• Zombie Master
• Zombie Panic! Source

External linksEdit

• Mod on Wikipedia
• The Valve Developer Community - official knowledge base for developers
• Mod DB - Mod database
• Interlopers.net - Half-Life 2 News & Tutorials
• Half-Life 2 mods
• Half-Life files on FileFront - Half-Life 2 Demos, Mods, Patches & File Downloads
• Half-Life Downloads on FilePlanet
• FPSBANANA - The FPS Customization Community
• Planet Phillip - mods for both GoldSrc and Source engines, and some sneak peeks on unreleased mods