Box Office Game is simple to play but difficult if you don't know every movie ever made. You're given a specific weekend of a specific year and it's your goal to figure out what the presented 5 movies are that were in theaters at the time. You have the option to reveal certain hints such as the tagline, lead actors, the budget, genres, ect. but all at the cost of your final score for that particular movie.
Box Office Game's backlog is unknown to me but it can be accessed by donating to the creator's Ko-Fi. Results are saved as statistics and you can compare with scores from everyone else who has played.