Second Extinction was a cooperative first-person shooter developed and published by Systemic Reaction for Windows, Xbox One, and Xbox Series X/S. In the game, mutated dinosaurs have taken over the Earth, and players must work together in fighting a war against the animals. The game received an early access release through Steam on October 13, 2020, and through Xbox Game Preview on April 28, 2021.
Originally scheduled to leave early access on October 20, 2022, the full launch was delayed several times due to unspecified issues, before being cancelled in October 2023. The game had been in development by a small 35-person team which lacked the resources necessary to continue. The game servers were scheduled to shut down in 2024.