If you happen to own any source games (such as tf2 or csgo) you can check the boxes next to their names to mount them. But this will only work with the games it lists and you have to own them.
The one that looks like a game controller will open up a menu to mount games (to add the games models and textures and so on so forth). (besides return to game if your just on the menu) Mounting games and changing game modes: Down at the bottom right you will see these icons. The amount of check boxes under it may change if you set it to 2 players.īut before you start a game lets look at the other options. if you click 'singleplayer' you can change it to 2-128 player slots so that people on your friends list can join you. on the right should be stuff like singleplayer and start game. you can also favorite it by clicking the heart. When you click on one it will highlight blue. To the right of that is the map previews/selections you should only have sandbox listed on it. (you wont see all these categories because if you're a beginner you probably shouldnt have any mods) Start New Game: Will bring you to this menu Now you wont see resume game but when your in a map you will. Now lets look at the main part of the menu. (im in a game though so it may be different with like pictures in the background zooming in then changing).
Now when you open up Garry's Mod you will be greeted with this menu.