KURU is a searchable game information database that helps players find where items and rewards come from across a wide range of online and role-playing games. Its tools connect items, monsters, regions, missions, and crafting systems, making it easier to research farming targets, drop sources, recipes, and required materials. The site covers Korean and global game services, with entries for titles such as Lineage Classic, Black Desert, Ragnarok Online, EVE Online, Old School RuneScape, Warframe, and many others.

Depending on the game, players can browse item details, monster drop tables, regional hunting information, boss rewards, crafting recipes, material uses, and acquisition routes. Some sections also provide specialized information, including drop probabilities, reward rotations, skill-book sources, equipment statistics, or market samples. KURU presents source and data-update information on game detail pages, helping users understand the basis and status of its listings. The site is associated with Polar Bear Studio and also provides information about its editorial principles, terms, privacy policy, and contact details.