Tonight's Cybersonica Social at the Flea-Pit on Columbia Road takes the just-completed alternative videogames festival London Games Fringe as its musical inspiration. (The Social is a monthly off-shoot of the experimental Cybersonica Festival.) 8-bit artists and chip-tuners performing joystick-friendly sounds include gwEm playing against Counter Reset; Random; DJ Jellica, aka Kittenrock, streaming her live act down fibre optics from Cambridge; and Mexico City's Arcangel Contantini. Exhibitions, interactive works and screenings of short films and animations satisfy the most hardcore Atari and Nintendo aficionados.