Our first annual "One-Page Jam" is happening next month. In this jam, the fun limitation is that your entire program must fit in a single screen of code, as displayed by the view
command.
So I decided to give it a try myself! I made a very simple little Space Invaders game. You can shoot the UFOs raining shots down upon you. If you get hit, it's game over! (If you don't hit them, then you win — press Control-C to exit.)
The game looks like this:
And the code looks like this:
Sure, the code is very dense. But that's part of the fun of this jam. You could of course neaten it up and make it far more readable just by replacing every semicolon with a line break.
Anyway, that's my demo... I hope you find this inspiring. I can't wait to see what you create!