Adding artwork to non-Steam games enhances your gaming library’s visual appeal. First, launch Steam and head to “Library.” Right-click the game, select “Properties,” then click “Add artwork.” Use a resolution of 600×900 pixels for optimal display. Next, search for high-quality artwork images on online platforms or community sites like Reddit. Save your chosen image, return to Steam, and upload it via the “Custom artwork” option. Finally, refresh your library to see the new visuals. This straightforward process elevates your non-Steam games, ensuring they visually match your other Steam titles.