USK 0 is a video game rating in Germany that indicates a game is suitable for all ages. It is part of the Unterhaltungssoftware Selbstkontrolle (USK), which is responsible for rating video games in the country. Games rated USK 0 contain no content that could be harmful to children, making them appropriate for young players. Games with a USK 0 rating often feature simple gameplay, colorful graphics, and non-violent themes. They are designed to be family-friendly and encourage creativity and exploration. Examples of such games include titles from popular franchises like LEGO and Mario.