"Covering many genres including action, real-time strategy, and RPG, Spore allows a player to control the development of a species from its beginnings as a microscopic organism, through development as an intelligent and social creature, to interstellar exploration as a spacefaring culture. It has drawn wide attention for its massive scope, and its use of open-ended gameplay and procedural generation. Throughout each stage, players are able to use various creators to produce content for their games. These can then be uploaded to the online Sporepedia and downloaded by other players."
Source: Wikipedia, "Spore_(2008_video_game)," available under the CC-BY-SA License.