Tetris - click to play

Most people have come to know Tetris through hours of playing on the Game Boy. But the real hero is a one Alexey Pajitnov — a Russian genius with too much time on his hands and an affinity with beards.

For the Tetris novice: shaped blocks fall into a pit where you must arrange them so they fit neatly — a sort of juggling in one direction. The more blocks you can place into a horizontal line simultaneously, the more you score.


 



Asteroids - click to play

Let me take you back... back to a world before pixels. In those days, all people had were lines. A company called Atari had recently wowed crowds with their clever use of lines in a game called Pong, but now line technology had advanced. It was 1979, and lines could be made to look like spaceships and big rocks and flying saucers... as long as you squinted a little.
 

And so, Asteroids was born. It's an elegantly simple game, but beautifully gratifying. You float in space and shoot the asteroids, but the more you shoot, the more asteroids you create. And be careful — you only have one ship for each 10,000 points scored.


 



Space invaders - click to play

Japanese company Taito had the inspired idea around 1978 that killing aliens was extremely good fun. So they invented a game called Space Invaders, lots of history then followed, some people got rich and so on...
 

It's a simple game with simple graphics, but it has one of the most vital assets for any computer game — gameplay. Modern games seem to forget this with their fancy "3D graphics" and "millions of dollars". All you need is a pointy green thing which shoots white stuff at a rampaging invasion of wobbling blobs.


 



Snake - click to play


This game has been around since sometime last century. This game has been around since sometime last century, but it only recently took off since it came as standard on Nokia mobile phones (or 'cellphones' as those crazy Americans like to say).

The idea is to guide the snake to eat the food. The sooner you eat, the more you score. And just like real food-eating snakes, the more you gobble, the fatter you become.