Garry's Mod

Garry's Mod

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How to Mount a Game
By Mitchy
This guide is to help players mount their existing games such as Counter-Strike: Source to Garry's Mod so they can use that content in game.
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Mounting a Game
Ensure you have the Source Engine game(s) you wish to mount fully installed and up to date and have ran the game at least ONCE before continuing.

  • Start Garry's Mod (or press ESC) so you can see the Main Menu.


  • Click the controller icon () down the bottom, next to the language icon.

  • Tick which games you wish to have mounted.


  • You may need to Restart Garry's Mod. (Close and Reopen the Game)

  • That's it! You have now successfully mounted the games!

NOTE: Mounting a lot of games may cause slower start up times and slower connection times to servers. It is recommended you only mount what you need.

NOTE: Only Source Engine games which have been approved and set up by Garry will appear on the list. Example. Warframe is not Source Engine: so it will not be on the list.
Icon Legend
This section provides information on the icons.
Game Not Installed.
Game Not Owned (or Disabled by Garry).
Game Not Mounted, But Able To Mount.
Game Mounted.

This may not be correct as there is no official information on the icons Garry has used.
Standard Gamemode Requirements
This is an additional section to help people who wish to select only what they need.

(Un-modified) DarkRP
  • Counter-Strike: Source
May Vary from Server to Server

Deathrun
  • Counter-Strike: Source

Elevator: Source
  • Half-Life 2: Episode 2

GMod Tower
  • Counter-Strike: Source
  • Half-Life 2: Episode 2
  • Team Fortress 2

Half-Life 2 Roleplay
  • Counter-Strike: Source
  • Half-Life 2: Episode 2
May Vary from Server to Server

Post Nuke RP
  • Counter-Strike: Source
  • Half-Life 2: Episode 1
  • Half-Life 2: Episode 2

Prop Hunt
  • Counter-Strike: Source
May Vary from Server to Server

Trouble in Terrorist Town
  • Counter-Strike: Source
May Vary from Server to Server

Zombie Survival
  • Counter-Strike: Source
May Vary from Server to Server

Most Maps (skyboxes, textures, etc)
  • Counter-Strike: Source

If you wish to have a gamemode added, please add a comment.
Verifying Game Cache Files (GCF)
A game isn't working, or I see purple checkerboards, weapon or world models are missing, or experience crashes while playing a game - how can I verify that my game files are installed correctly?

Try following this Steam Knowledgebase Article:
When All Else Fails (Contact Support)
If you're sure you've read over everything and it's still not working and you have tried verifying your cache or are receiving unexpected errors, your best bet is to Contact Support.
Steam Store Quicklinks
You can purchase the games mentioned above with the links below, bundles are a quick way to get a lot of games and save money. Otherwise, if you just want the individual game, click on it's individual link.

The Orange Box $19.99 USD (Save $15.97 USD)
Bundle Contains
Price
$9.99 USD
$9.99 USD
Save $15.97 USD
Price of individual games: $35.96 USD
Bundle cost: $19.99 USD
Thumbs Up!
If this guide has helped you, please help this guide back by giving it a thumbs up.

If the guide hasn't helped you, I'd firstly like to apologise and secondly, leave a comment below and I'll attempt to help you; but if you have followed it top to bottom your best bet would be to try and contact the appropriate support as that's what you paid them for.
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352 Comments
i want an awp (and to die) Feb 28 @ 3:46pm 
thanks, i wondered how people got a lot more stuff without workshop
blu Feb 4 @ 8:04pm 
you mount it manually with the mounts.cfg as shown in my tutorial
Videogamer55 Feb 4 @ 7:24pm 
How do you mount it tho it shows a big X when I try to mount HL2
RealMamitler Feb 1 @ 9:16am 
MElonboy the shy guy If you mount HL2, you get the game maps in garrys mod, and also some other extra stuff.
Videogamer55 Jan 2 @ 12:48pm 
I need help with team fortress 2.
Bloil Your Blood Nov 18, 2020 @ 4:41pm 
Why do you have to mount HL2 if you already have HL2 in gmod.
blu Oct 21, 2020 @ 2:06am 
Can you link back to my guide for the advanced mounting stuff?
Mitchy  [author] Oct 9, 2020 @ 6:01pm 
@blu Sure.

@kenshin You can uninstall it, but you will lose access to those files, textures, etc.
blu Sep 27, 2020 @ 2:44pm 
oh lol i just made my guide and saw we did almost the same thing, but i should have uploaded the legend with images xD Can i link to your guide in mine?