In the most current versions of Minecraft, there are three main game modes:
 * Survival mode
 * Creative mode
 * Adventure mode.

= Survival Mode =
In survival mode, you have to mine resources and you can get hurt. This game mode is the most common for actual game play and is the default game mode.

= Creative Mode =
In creative mode, you can't get hurt, you can fly around, and you have an infinite amount of resources and blocks at your disposal. This game mode is mostly used for building anything you want.

= Adventure Mode =
Adventure mode is about the same as survival, except, in adventure mode, you can't break any blocks. This game mode is mostly used if you are playing on an adventure type of map, and the creator doesn't want you to break anything in the world.