Every game these days has a sequel. And every sequel either has a prequel leading up the sequel, or another sequel set hundreds of years in the future, which leaves room for prequels and sequels to the prequel. A sequel might be a major overhaul, or it may add an extra element or two to an already established formula. That’s just fine. If the game is good, people might want more of it, because we obviously cannot possibly have enough of something which is good and addictive, and gaming is a hobby which strives on addiction. But do we really need ten to twelve games supporting this habit?