Minecraft is one of the most popular video games ever made. In a world of blocks, you can create almost anything you want while attempting to survive the night against zombies, spiders, skeletons, and more. 

Created by Mojang, the game has years of updates behind it, adding new mobs, biomes, skins, and other features. When you're done there, you can also download a range of Minecraft mods, or check out the player creations on the console editions.

Whether you want to play with friends or brave the zombie and skeleton-filled world alone, the only limit is your imagination. People have built everything from replicas of real cities to actual working machines, using redstone circuitry to make usable calculators and more. 

It's no surprise that many schools have incorporated Minecraft into their lesson plans, since there's so much room for creativity and logical thinking in this retro-styled world.