Match 3

Since Candy Crush Saga shook up the Android market, a lot has changed, but match-3 games are still just as addictive. And just as varied, because they're no longer limited to classic puzzle formats: some include storylines and home-decoration mechanics, others lean toward RPG and turn-based combat, and many have nothing to do with popping candies, gems, fruits, or other colorful objects. It's an ideal genre for passing the time by matching elements without complications.