Key is a Japanese visual novel studio. It is known for making dramatic and plot-oriented visual novels. Some of their most famous works include CLANNAD, planetarian, and Little Busters!, among others. Several of their visual novels have received anime adaptations, making them quite well-known even outside of the visual novel community.
They've also formed Key Sounds Label for their music tracks, and they produced an Internet radio show called Key Net Radio which is now defunct as of 2010. Key works under the publishing company Visual Arts, where it originally sprung out of.
