COCOON – Tool-Less Ultrawide Fix (or Any Aspect Ratio)

Ultrawide Fixing Guide

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I’d recommend binding anything on your keyboard, setting any controller options, and generally getting the game set up to your liking before doing this, as the menus can become unusable depending on your resolution.

• Right click COCOON on your Steam Library.
• Click on “Properties”.
• Scroll down to the “Launch Options” portion.
• Once here, go ahead and type in the following arguments.

-screen-width X -screen-height Y

Replace X and Y with the values of your screen. For example, if you’re on 3440×1440, then write:

-screen-width 3440 -screen-height 1440

Note: I’ve tested this in 4:3 (1920×1440). 16:3 (3840×720), and 21:9 (3440×1440). All seem to work in Hor+/Vert+ outside of 2D/HUD issues. I obviously haven’t tested every single aspect ratio that comes to my mind, since this game just released, hence the asterisk.

If you’re having issues with the game not launching properly in your desired resolution, also try forcing the game into Fullscreen Borderless. To do that, add this to the Launch Options:

-window-mode borderless

Note that changing the resolution in the game menu will result in being reset using this method. However, every other option is fine, including the FPS cap & Brightness.

After that, your game should launch in your desired resolution. Now stop with the technical resolution stuff, and go enjoy COCOON!