demoscene

thumb|upright=1.2|thumbtime=5:51|Second Reality, a 1993 demo by the Finnish group [[Future Crew]]

The demoscene () is an international computer art subculture focused on producing demos: self-contained, sometimes extremely small, computer programs that produce audiovisual presentations. The purpose of a demo is to show off programming, visual art, and musical skills. Demos and other demoscene productions (graphics, music, videos, games) are shared, voted on and released online at festivals known as demoparties.