Just Cause 4 is an open-world action-adventure game developed by Avalanche Studios and published by Square Enix. Released in December 2018, it is the fourth installment in the Just Cause series. Players control Rico Rodriguez, a skilled operative, as he battles a private military organization in the fictional South American country of Solís. The game features a vast environment with diverse landscapes, including jungles, deserts, and mountains. The gameplay emphasizes exploration and destruction, allowing players to use a variety of gadgets, vehicles, and weapons. A notable feature is the weather system, which includes extreme conditions like tornadoes and thunderstorms, affecting gameplay dynamics. Players can complete missions, engage in side activities, and create chaos throughout the open world.