Destruction is fun. Developer Volition understands this. That is why they made an entire game out of that one, very simple concept. Don't let that fool you into believing Red Faction: Guerrilla is merely a glorified tech demo, however. As with any good open-world game, Red Faction is all about providing the player with things to do. The fact that the player can unleash permanent, massive destruction on the game-world just happens to be the main focus.