it starts out fun but eventually it just becomes boring because the game never changes and you basically just go into a fight, spam left click and then upgrade your weapons and armor . The story really doesn't make any sense either so there isn't much of a reason for you to play it in the first place. On top of all that the game is really easy and as long as you don't play with really high level friends there is zero risk of dying, and even if you do die there is no punishment so you can just fail the mission and try again as many times as you need to.