The company's first project was Disruptor, whose poor sales almost led to the company's bankruptcy. Insomniac's next project was Spyro the Dragon, a successful franchise that spawned two sequels within two years. Insomniac developed a new franchise, Ratchet & Clank, for the PlayStation 2. The company also developed the Resistance series for the PlayStation 3, and released its first multi-platform game, Fuse in 2013. The company also worked with Microsoft Studios on 2014's Sunset Overdrive. The company's current projects include a remake of Ratchet & Clank and an Oculus Rift action-adventure game titled Edge of Nowhere.

Insomniac Games has received recognition from critics. It was named the twentieth-best video game developer by IGN, and the best place to work in America by the Society for Human Resource Management. Some employees who left Insomniac Games have founded their own independent companies, such as High Impact Games.

They are located in Burbank California.