| fun-package | Use R for Fun |
| alzheimer_test | Test Alzheimer's disease by finding out the different character in a character rectangle |
| fun | Use R for Fun |
| gomoku | The game of Gomoku, a.k.a Five in a row |
| htmlspecialchars | Replace HTML special characters with HTML entities |
| lights_out | Play the "Lights Out" game in R |
| mine_sweeper | Play the Mine Sweeper game in R |
| random_password | Generate a random password with a specified length |
| shutdown | Shut down the operating system with the command 'shutdown' |
| sliding_puzzle | Sliding puzzle in R |
| tagData | Tag information of Yihui Xie's English blog |
| tag_cloud | Creating Tag Cloud in R (with Flash and JavaScript) |
| tower_of_hanoi | Demonstrate the Tower of Hanoi puzzle in R |