If you are looking to print a physical cover for your game case, you can find high-quality assets at the following locations:
: Includes fan-made backgrounds in 3840 x 2160 resolution.
: Offers high-resolution "Box - Front" (1151 x 1923), 3D box art, and even "Box - Spine" images.
For high-resolution backgrounds to match your installation, check these sources:
: Contains a dedicated gallery for key art, prototype covers, and promotional materials.
: Provides a collection of 4K and HD wallpapers specifically for this title.