Worms is a turn-based, artillery game developed by Team17. It is available on, Xbox Live Arcade, PlayStation Network, and iPhone OS platforms and is one of the many installments of the Worms series created by Team17. The game was known as Worms HD during development, but Microsoft renamed it to just Worms (possibly to avoid notions of HDTV being a requirement to play). The game has since taken on the moniker, Worms (2007).
Source: Wikipedia, "Worms (2007 video game)," available under the CC-BY-SA License.