How to Change Window Size in Fallout Shelter on PC
To change the window size in Fallout Shelter on PC, you typically can't do this directly in-game since the game doesn't have built-in resolution settings for window mode. However, you can try adjusting your screen's resolution through your computer's display settings before starting the game. This might not give you the perfect fit but can affect the game window size.
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Honestly, don't bother. The game doesn't support custom window sizes. Fullscreen or bust. Or, play around with your display settings like the first answer suggested. It's a workaround, not a solution.
Just hit Alt+Enter while the game's running. This should switch between fullscreen and windowed mode. Not exactly resizing, but it's something.
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