To enter the Castle Settings menu, press the ESC button on your keyboard and then click the Settings button.
1 - Full-screen Resolution. Here you can set a preferable resolution for the full screen mode.
2 - Graphics Quality. Here you can set high, medium or low graphics quality.
3 - Use Windowed mode in the castle. If the checkbox is active, the castle will run in a window.
After you have changed any graphics settings please click the Apply button:
Please note that you can't change the screen resolution in the windowed mode. Only the graphics quality can be changed:
Three parameters can be tuned:
1 - Music volume controls the volume of background music.
2 - Sound vloume tunes the volume of incoming messages notifications, animation and mouse clicking.
3 - Voice volume controls the volume of voiceovers.
You do not have to apply any changes to audio settings. After you have set any of these parameters to a certain level, just close the window.
By changing any of the following parameters, you can adjust the gameplay to your convenience:
1 - Left-click movement. If this checbox is active, your hero will move around the map by left click of the mouse.
2 - Allow participation in Maneuvers. By activating this checkbox, you agree to take part in Maneuvers (it's a Borderlands match against members of the same faction).
You do not have to apply any changes here. After changing any parameter, simply close the window.