Greenlight, Steam's new avenue for getting more indie games on its popular digital distribution service, is now open, and users have started rating titles for possible approval. After sifting through submissions from studios wanting to get on the platform, Steam has opened its Greenlight site where its community can rate and learn more about different titles The service's operator Valve reviews the projects that receive the most attention, puts them through its standard approval process, and decides whether to offer them on Steam. It's more than just a way for developers to get on Steam -- it also gives game makers added exposure for their titles, featuring them on a platform with more than 54 million registered users. Developers can also build early buzz by submitting just concepts or alpha builds to Greenlight. Though these titles aren't rated, players and developers can participate in discussions that can influence their direction. Greenlight launched with 30 titles for the community to review on Thursday morning, but as of press time the site already had more than triple that amount due to a rush of submissions.