Downfall is a unique 2 player game. ´Snow´ will fall from the sky and your job is to prevent it from piling up to the point where it reaches the top of your screen. This can be done by erasing and drawing lines using the cursor - controlled by the keyboard. Channelling your snow into the hole at the bottom will make your opponent´s screen move up - making their snow move nearer the top of their screen. You can even sabotage your opponent´s screen.