Garry's Mod

Garry's Mod

208 ratings
How to Mount a Game
By Psihusky
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.
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

  • 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
$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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im not greedy, im poor
Psihusky  [author] Jun 26 @ 6:12pm 
I don't support pirating games and stealing from developers of their hard earned time. If you're that desperate to save a few dollars, you can download most textures and stuff off the Steam Workshop.
Boy_Mayo Jun 21 @ 8:18pm 

I bet Steam would detect it as pirated, and delete the files. Also, why would you want to go through that pain when people provide other textures online?
banditk00_swat May 17 @ 7:17am 
before i bought the valve complete pack i downloaded pirated sourcce games files for gmod and it worked but forgot from where
can i port a pirated game? for example HL:S
banditk00_swat May 14 @ 12:40am 
for everyone who has mounted games but still has errors,missing textures and particles. you need to verify game files of the mounted games so they can download the missing files.i hope i helped you :happy_creep:
Smartbics2 Apr 18 @ 4:31pm 
@KevThePurpleFox sigh... Dude it needs half life source, it will not allow the original half life to be mounted
KevThePurpleFox Mar 26 @ 10:53am 
I have half life one installed, and it has the X. I can't do it! Help :(
CurseOfCrits Feb 15 @ 7:40pm 
I have tf2 installed and the maps load in right and most textures work but some textures are replaced with gmod/hl2 textures.
meme Dec 29, 2019 @ 6:55pm 
Depends on the game. I believe the only game that gives you weapons is Half-Life: Source.