Probably already suggested, but Minecraft is a great family game and trust me, it will get you addicted and you'll spend hours and hours playing the game, then, if you ever get bored with it (not likely), the community has many intricate and amazing mods, some of which completly change the entire game, and all of them add much much more content to the game. Not to mention that the game is still being updated, and much more is being added to it. Oh, and there's multiplayer, which brings even more gamemodes that will get you addicted, like MineZ, or Hunger Games, etc.