Checkpoint64 offers 3 launch options for Garry's Mod. A launch option is a switch the game reads from its command line when it starts. Tick the ones you want in Checkpoint64 and the app adds them every time you press LAUNCH, or type them into Steam yourself.
Every option and what it does
| Option | What it does |
|---|---|
-noaddons | Temporarily disables legacy (folder) addons; useful for finding a broken addon. |
-noworkshop | Temporarily disables Steam Workshop addons; useful for finding a broken addon. |
-console | Starts the game with the developer console enabled. |
Launching Garry's Mod with them in Checkpoint64
- Open your Garry's Mod save in Checkpoint64. LAUNCH appears there when the game is installed through Steam on that PC.
- Open Launch options under it and tick the ones you want — each shows the explanation above.
- Press LAUNCH: Checkpoint64 starts Garry's Mod through Steam with the options you ticked.
Your picks are saved to your Checkpoint64 account per platform, so a Windows PC and a Linux machine each keep their own set.
Adding them in Steam yourself
- In your Steam Library, right-click Garry's Mod and choose Properties.
- On the General tab, find Launch Options.
- Type the options you want, separated by spaces — for example
-noaddons -noworkshop— and close the window.
Launch options change how Garry's Mod starts, not your saves. If the game won't start after adding one, take it back out.
Where Garry's Mod keeps its saves: Garry's Mod config file location. For how its saves break and how to roll one back, read the Game Config Backup guide.