Just Cause 4 is an upcoming action-adventure game developed by Avalanche Studios and published by Square Enix. The game is scheduled to be released for PlayStation 4, Windows, and Xbox One on December 4, 2018. Just Cause 4 is a third-person action-adventure game set in an open world environment. The player assumes the role of series protagonist Rico Rodriguez. The game is set in a fictional South American country called Solis. Rico Rodriguez takes on a paramilitary group called the Black Hand, run by a lady named Gabriella. Just Cause 4 is being developed by Avalanche Studios and published by Square Enix. The game is being developed with a new version of Avalanche's game engineApex. The new technology allows the game to have diverse and extreme weather effects including blizzards, sandstorms, tornadoes and more. Developers of the game noted that improvements had been made to the game's artificial intelligence over Just Cause 3. These changes were intended to make non-player characters smarter so that they behave more tactically and pose more of threat to the player. Other improvements to the game engine include physics-based rendering and a new animation system.