Freemium is a term for free-to-play video games with premium, pay-for content. It’s a common model these days, one of the best examples being Valve’s Team Fortress 2 where players can buy clothing, weapons, and other goodies from an online store. Many games are going freemium, while smaller game studios are launching their titles under the freemium flag right from the start. Check out this article about one of these small game studios, Itzy Interactive, and their decision to go freemium with their games. Gamasutra has the story.