The classic Snake game made as an addon. I doubt this needs a lot of explanation!
Simply type /snake to show the game. Move the snake with your arrow keys. While a game is running you can't use your keyboard to move in the game world but your mouse will still work.
If you have suggestions, comments, please let me know!
Game performance may vary, I have only tested it on my own computer so if you're running into problems give me a shout.