U Cleaner is designed to mimic a computer. The player's primary goal is to dispose of junk files and data, achieving a clean hard drive. This is accomplished by collecting and eliminating various forms of digital waste, such as useless papers, leftovers, and regulatory files.Players must navigate through a virtual interface to find and remove the junk data. Their progress can be monitored through visual metrics, such as a gradually emptying trash can or the removal of icons representing files. The game runs in the browser with no requirement for download or registration.