The name Alexey Pajitnov may not ring any bells, but his simple, colourful and maddeningly addictive game Tetris certainly will. Tetris turns 25 today; happy birthday Tetris.

It's quite amazing how such a simple game can be so addictive, so well recognized and available on soooo many different platforms from arcade machines to mobile phones. I don't think any other games has such a very loyal fan base including these students who made a human version of the game (well, a video of it at least)...

It's great to see such a simple and addictive game still have an huge impression in the PlayStation age we all live in now.