I seem to have a bit of a problem here...

Whenever I try to load Gmod, it kinda never loads. It just stays on the window that says “Preparing to launch Garry’s Mod…”. All my other Steam games work great, but this one won’t do anything for some reason. Can anyone help me?

Does the same thing for me.

Have you been able to load Gmod in the past? If not be sure you have a source game that you have installed. If you do have a source game installed I am sure someone else here may have a better idea on how to get it to work.

I think it just might be my Internet connection. It explains why I can’t get into online matches in TF2.

Do you have a lot of addons? Loading that may some times take half an hour.