Unnecessary Inventions: The Game™️ The first card game where you and your friends get to invent new products that help solve problems that don’t really matter. Our game features 74 Invention Time cards of first world problems. Read an invention time card aloud & flip over the timer as each player must invent a new product to solve that completely unnecessary problem. On the dry erase boards, sketch out your invention idea, come up with a catchy product name, and write an award winning description before you pitch your idea to the group & vote for the winning invention idea.