Download the 4MB demo here. You can dig, mine, punch trees for wood and follow cows for 90 minutes before your world “locks” and becomes uneditable, but you can make as many new worlds as you like. That’s pretty generous.
What’s Minecraft? Only the finest survival-horror ever made. Starting with only your fists, you must survive the coming nights by crafting yourself a shelter, weapons and armour. If you want better stuff, you’re gonna have to dig deep into the world’s crust, braving spiders, zombies, exploding creepers and the penultimate horror: lava. If you need help, try this.