Modification

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A modification, often abbreviated to mod, is an alteration or creation of files for a game engine, which allow it to modify the gameplay style, graphics, environments, models, etc.

Mods in a broad sense can be a game like Portal Stories: Mel Portal Stories: Mel. Mods in the narrow sense add something to the game like Synergy Synergy. Some games like Half-Life 2: Update Half-Life 2: Update or The Stanley Parable The Stanley Parable are difficult to define as just one.

Warning.pngWarning:Not every game developer or copyright holder allows mods. Read the End User License Agreements and other related documents. Please note that they may change from time to time.

Types of Mods

  • Third-party modifications are mods that has not been developed by the original game designer. Mods are typically third-party, as first-party mods are often called expansions.
  • Total conversions (sometimes abbreviated TC) are mods that have altered their original games to such extents (through new models, new animations, new code, among other things) that their original games can no longer be recognized. The amount of work and expertize required for total conversions, makes these types of mods very rare.
  • Dead modifications are mods that (often due to loss of interest or internal problems) have ceased development and been abandoned without producing a release.

Installing Source Engine mods

Blank image.pngTodo: Manual installation with -game parameter (same process as GoldSrc and Quake; allows for more complex VPK mounting in gameinfo.txt)

To install a modification automatically, follow these instructions:

Method 1:

  1. Copy the mod folder (with the gameinfo.txt file directly inside) into your 🖿sourcemods folder. (usually 🖿…\Steam\SteamApps\sourcemods), for example:
    1. Windows Windows: 🖿C:\Program Files\Steam\SteamApps\sourcemods [for 32-bit Windows] 🖿C:\Program Files (x86)\Steam\SteamApps\sourcemods [for 64-bit Windows].
      macOS macOS: 🖿~/Library/Application Support/Steam/SteamApps/sourcemods[confirm]
      Linux Linux: 🖿~/.local/share/Steam/steamapps/sourcemods [for normal installation] 🖿~/.var/app/com.valvesoftware.Steam/steamapps/sourcemods [for Flatpak installation]
  2. Start/Restart Steam. If the mod is available for play, Steam should list it in your Games library.

Method 2:

  1. Copy the mod folder (again, with the gameinfo.txt file directly inside) into 🖿\Steam\SteamApps\common\Source SDK Base 2013 Singleplayer or 🖿Source SDK Base 2013 Multiplayer folder.
  2. Launch hl2.exe with -steam -game "(mod folder name)" command-line parameters. Or you can add the same launch options to Source SDK Base 2013 on Steam games library, then click Play.
Warning.pngWarning:The 🖿sourcemods folder must be on the same drive as Steam is installed. If there is insufficient drive space, it can instead be installed manually in the base game's directory.

Installing GoldSrc and Quake Engine mods

To install a modification for GoldSrc GoldSrc-based games (such as Half-Life Half-Life), which also applies to Quake, follow these instructions:

  1. Do the same Method 2 as the Source engine, but instead copy mod folder to 🖿\Steam\SteamApps\common\Half-Life (for Half-Life Half-Life) or 🖿\Steam\SteamApps\common\Quake (for Quake Quake) folder.
  2. Start/Restart Steam. If the mod is available for play, Steam should list it in your Games library (except in Quake).
    OR
    Launch hl.exe with -game "(mod folder name)" command-line parameters. Or you can add the same launch options to Half-Life on Steam games library, then click Play.

See also


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