“Towards the end of the campaign the phrase “You are not a hero, you are a mistake” is heard and there could not be a better quote for the title. Marvel’s Avengers has nothing heroic about it, except for players who fall into the trap out of love for these heroes and “farm” until the sun goes down. Minimal effort in gameplay representing the heroes, minimal effort in creating a good level design, minimal effort in creating competitors (just three villains, along with the final), minimal effort even for a good game as a service game. ”
Source: N4G PC Marvel's Avengers Review – GameOver