How to Get 1366 x 768 Resolution in Counter-Strike 1.6by Stephen Lilley ; Updated September 22, 2017
The resolution of a computer screen refers to the total number of horizontal pixels that are being displayed versus the total number of vertical pixels that are being displayed. To change the resolution in the "Counter-Strike 1.6" game to the 1366 x 768 resolution, you have to select a very specific option from the Steam application.
Open the Steam application that you use to play "Counter-Strike 1.6" on your computer.
Click the "My Games" tab at the top of the screen.
Right-click on the listing for "Counter-Strike 1.6" in the "My Games" window.
Click the "General" tab. From this window, click "Set Launch Options."
Change the value next to the letter "w" in this window to "1366." This will set the resolution for the game to 1366 x 768. Click "OK." The game will launch in the specified resolution the next time you play.