Little Big Computer
Fantastic, a computer within the computer. It’s kind of the opposite of Pongmechanik, since in both cases hardware and software collapse into each other.
Little Big Planet is marvelous anyway, it gives the player the impression to play with objects (toys) rather than videogame-sprites. Because of its richness of visual texture but also because the physics model feels real and engaging, you can play it with up to four people and the attention to detail is at times almost unbelievable.
And you can design levels and contribute them, apparently with great freedom–that is where the above came from (and Dot shared it).