Just Cause 2 is a sandbox-style action video game. Its gameplay is similar to that of its predecessor, the player is free to roam the game's open world at will, not having to focus on the game's storyline all the time.
Really great game, story is great and the free roam is great, even after you finish the game 100% the fun just keeps on going, especially with mods. If you have the right specs, I suggest this game to anyone.