This guide will tell you how to add a Non-Steam Game to Steam.
1- First, open up the Steam library, and you will find the game list there. Click on the add game button from the bottom left side of the screen, select add a non-steam game, or simply on the top left corner. Go to games and select add a non-steam game to your library from the drop-down menu. A Games list window will open in front of you.
2- Now here, you will find that Steam automatically opened up every single program that it considers to be a game or just a program that you can run through Steam.
3- But let’s just say that the game that you want to run is not in here as most of these are from the disk. Then go to browse This PC and go to the disk where your game is located, select your game and it will be added to Add a Game list. After that, click on the Add selected programs button on it for Speed Carbon. Now your game is ready to play.