Mark Fujii of TheGameReviews writes: "The best things in life come in threes. For instance, Indiana Jones, Star Wars, Wise Men, stooges, sexual partners, and, as God of War III just recently proved, video games as well. However, despite the video game industry's love affair with churning out sequels at an alarming rate that makes stockholders smile and enthusiast gamers cry, developers and publishers are usually pretty selective about which games become a trilogy and which games are left with only a lone sequel to keep them company. And by "selective", I do mean completely arbitrary and periodically stupid. While the billionth Mario or Tony Hawk or Rock Band game is in production, these potential trilogies are sitting around neglected and unloved by their creators. The games showed an amazing amount of promise when they debuted a lifetime ago, but now they're forced to sit idly by, desperately waiting to be completed. Here are the top 10 trilogies that need completing."