- Added a launch option to enable windowed mode.

In order to trigger this function:

1. Left click on the R00000 game icon in your game library list
   
2. Select "Properties..." option
   
3. In the new pop-up window select "General"
   
4. In the "Launch options" text box enter "--enable-windowed"
   
5. Launch the game. It should start in windowed mode. You will also have a new option in the game menu to switch between windowed and fullscreen modes
   

Learn more about launch options in this game guide