Make the square do one thing well.

A recognizable Roblox game icon checklist

Players should be able to identify your icon before they can read the title. The strongest icons use a bold silhouette, a simple background, and one visual cue that belongs to the game.

Choose a single focal subject

Use a character face, a distinctive tool, a creature, or a logo mark. If you need three characters to explain the game, move that story into the 16:9 thumbnail instead.

Build contrast into the square

Separate the subject from the background with value, color, or a clean outline. Avoid a subject and background with the same brightness; they will merge when the icon is reduced.

Preview at small size

Look at the icon in a small browser tab or a scaled-down mockup. Details that look polished on a large artboard may be invisible in the actual game list.