Minecraft is a great way to make time fly.
You are placed in this vast land with nothing. If you are playing on a difficulty level higher than peaceful, you quickly need to build a shelter before the first night comes. Why? Because that is when the mobsters come out. These things are not fun to play around with. The worst are the creepers. They have the tendency to blow up when you are near them. The zombies, spiders, and skeletons aren't all that bad. Though the skeletons do have a bow and arrow that can go a pretty good distance to hit you.
A lot of people give this game grief because of the graphics. I hate to break it to you, but graphics do not make a game great! If you are picky about a game's graphics there are realistic texture packs out that you can download for free.
I have had this game since the alpha stages and still love it. Minecraft still receives occasional updates that include many new items for the game. This game is definitely worth a try at playing.