Just Cause 4 is an open-world action-adventure game developed by Avalanche Studios and published by Square Enix. It released on 4 December 2018 for Windows, PlayStation 4 and Xbox One and is the fourth game in the series and a sequel to Just Cause 3. You control series protagonist Rico Rodríguez in Solís, a fictional South American open world with varied biomes ranging from rainforest to desert and snowy mountain peaks. Rico uses a wingsuit and an upgraded, customizable grappling hook, and can fight alongside AI-controlled allies in frontline battles (Wikipedia, Steam).
The game features extreme weather such as tornadoes, blizzards and sandstorms, and Steam also mentions tropical lightning storms. In the story Rico travels to Solís to investigate his late father's links to the Black Hand, a private military. He leads a rebel force, the Army of Chaos, against Oscar Espinosa's weather-weapon project, the Illapa Project, and after Espinosa is defeated sets his sights on the Agency.
Critics gave mixed reviews: Metacritic scores range from 65 to 70, with praise for the open world, controls, graphics and soundtrack and criticism of the story, mission design, cutscenes and voice acting. Square Enix said sales fell short of expectations. Three expansions followed (Dare Devils of Destruction, Los Demonios and Danger Rising), alongside smaller cosmetic and vehicle packs.
Tornadoes, blizzards, sandstorms and lightning storms are part of the open world (Wikipedia, Steam).
The grapple hook is customizable. The Air Lifter, the first mod you get (in the mission Behind the Lines), attaches an inflatable bubble to an object so you can lift it.
Rico leads a rebel force, the Army of Chaos, fighting the Black Hand in Solís; AI-controlled allies fight alongside him in frontline battles.
Dare Devils of Destruction (weaponized vehicles and challenges), Los Demonios (a demonic threat from an ancient temple) and Danger Rising (a prototype hoverboard and the Agency).
Release facts, mechanics and boss details on this page were checked against these sources on 12 October 2026. Spotted an error? Tell us.