I have a question about bitcoin

Maybe a smarter brain out there can answer my question: At the heart, bitcoin is a riddle, a game. To „mine““ a bitcoin means to solve a mathematical riddle. The riddle is so complex that even super computers can’t easily solve it. But if you do solve the riddle – you get a „bitcoin“

The number of riddles we have to solve in the bitcoin game is limited to 21 Millions. Once we solve all those riddles the game (mining) ends. Scientists estimate that our supercomputers will solve all those riddles in 120 years.

So here is my questions – what happens when after solve all those riddles? Do we all go home, like after watching a game?