How do I change a gamemode on garrys mod 13

I want to change my Garry's mod gamemode to stranded, but unfortunately the only information I've found is either for dedicated servers or port forwarded servers. I've looked up for LAN and the same videos pop up.

How can I change the gamemode on Garry's mod to Garry's mod stranded?

Solution 1:

If you are using the version of stranded found on the workshop, then you should be able to find it by clicking sandbox located in the bottom right of your screen whilst on the main menu. If you found stranded in a location other than the steam workshop (eg. http://garrysmod.org), then it is more than likely outdated due to the major changes between Garry's Mod 12 and Garry's Mod 13.

Stranded is not default with Garry's Mod, so if you haven't already acquired it, then you can download it off the workshop (here is the more or less official version http://steamcommunity.com/sharedfiles/filedetails/?id=133364818).