Rico Rodríguez takes on the Black Hand, the world's most powerful private army run by Gabriela Morales, a newly introduced character. The game is set in a fictional South American country called Solís, which is home to extreme weather conditions. Rico can participate in these battles at any time. The game includes a frontline system in which the rebel forces fight against the Black Hand army at the borders of their territories. During combat, he may be assisted by allies who are controlled by artificial intelligence. Players can call for supply drop any time in the game. Each weapon also has an alternate firing mode. The game features a large variety of vehicles and firearms, including exotic weapons like the Wind Gun and the Lightning Gun. The game also features a weather system and environmental hazards such as tornados and thunderstorms. A new wind and particle system was introduced, and it affects Rico's traversal with his wingsuit. Rico can travel the game's world using his wingsuit and grappling hook, whose functions are expanded to include the ability to attach hot air balloons and rocket boosters on objects. The game takes place in the fictional nation of Solís, a large open world consisting of different biomes including snowy mountains and deserts.
The player assumes the role of series protagonist Rico Rodríguez. Just Cause 4 is an action-adventure game played from a third-person perspective. In this gameplay screenshot, Rico is driving towards a tornado.