The description of Minecraft Trial
Minecraft is an open-ended game where you decide what adventure you want to take. Explore infinite worlds* and build everything from the simplest of homes to the grandest of castles. In this free, time-limited trial, you'll get to experience Minecraft in survival mode, where you craft weapons and armor to fend off dangerous mobs. Create, explore and survive!
To enjoy the full Minecraft experience – including creative mode, multiplayer and more – purchase the game at any point during or after your trial.
LEARN MORE: http://www.minecraft.net/
*Trial worlds do not transfer to the full game.