50000 Puzzle IQ Test - Challenge the National Ranking of Riddle Solving is a puzzle game developed by STAR STUDIO K.K. This game is a comprehensive and challenging puzzle game that offers over 100 thousand riddles to solve. It is the largest puzzle game ever made, with new riddles added every day throughout the year. This game is completely free to play with no in-game purchases required.

In this game, players can challenge themselves to solve riddles to measure their IQ. There is also a time attack mode where players can compete to solve riddles as fast as possible to win treasures. Another feature is the national ranking of riddle solving, where players can compete with others across the country to see who can solve the most riddles. Lastly, the game allows players to create their own riddles and share them with others.

Overall, 50000 Puzzle IQ Test - Challenge the National Ranking of Riddle Solving is a fun and challenging game that is perfect for puzzle game enthusiasts. The game offers a variety of riddles to solve, and with the addition of new riddles every day, it will keep players engaged for a long time.