STEAM GROUP
Windowed Borderless Gaming winborder
STEAM GROUP
Windowed Borderless Gaming winborder
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October 3, 2013
 This topic has been pinned, so it's probably important
Source Engine Games
I get allot of questions about Source Engine games which already have the native option of borderless mode, so instead of repeating myself i'll post the "how to" here.

All games running on the Source engine have a borderless function build in, so you don't need "Windowed Borderless Gaming", to play your Source engine games borderless, do the following:

  1. In steam open your Library of games, select the game you want and right click it to open the menu and select Properties.
  2. Click on Set Launch Options
  3. Add the “-window -noborder” to the box and select OK
  4. Start the game like you normally would.