A downloadable game
This game is written in Carp, a Lisp dialect I'm making. To run the game, install the Carp compiler and run "$ carp -x main.carp".
The source code for the game can be found here:
The idea for the game is an epic, single screen battle between aliens and Earth where lots of people can join in. The controls are simple, just steer your spaceship and shoot. The ships not controlled by players will be handled by AI (not done...).