The PC version of the game has sold 13,000,000 copies as of December 2013. Most console, PC, and handheld games can only dream about such a number... and it's still selling about 12,000-13,000 copies daily.
The Creeper came about after Notch botched the models for Pigs. He liked how the strange results came out and decided to work with it to create the Creeper.
The Far Lands, a glitchy area players could see if they go far (really far) enough in one direction of the map. The Far Lands was named this by the fans and became popular. Even Notch liked the idea of finding a buggy area that had blocks and terrain spawn with weird results, so he decided to leave the bug in on purpose for players to find. Sadly, this glitch was accidentally fixed in the Beta 1.8 update when the coding for terrain generation was updated.
Development Hell: The mod API has been pushed back version after version, even after Mojang hired someone specifically to work on it. Later, the person hired to specifically work on it left the company due to "creative differences" and a "reduced focus on the mod API".
Bedrock is referred to as "adminium" because only server admins are able to create or destroy it.
Before Redstone was officially named, there was a whole palette of fan nicknames for it, with the most popular being Cuprite and the troll-coined Aspergite.
Thomas the Sheep.
The stuff found in the Nether is either Hellstone, Bloodstone, Netherstone, or Brimstone,note Actual name: Netherrack the gold things in the Nether are Glowstone, Brittle Gold, Sulfur, Australium, Bananabricknote Actual name: glowstone and the blocks that make you slow are Slow Sand, Mud, or Hell Mud.note Actual name: soul sand Also the Nether is called Hell a lot (if you press F3 in the Nether it even says Biome: Hell).
Establishing a home by digging it into the side of a mountain (as opposed to building it in the open from wood or stone) is sometimes called "the dwarf route".
Golden armor is often called "butter armor" due to its relative fragility and yellow color.
There is a mod that renames all gold objects to "butter". And you can actually eat them.
Obsidian is often called "obby" for short.
Some people call chickens "ducks", due to them resembling ducks more than chickens, and the fact that they are able to swim in water.
Chunk errors are sometimes called "beta holes" or "voids".
Villagers are often called "Squidwards" or "Testificates". The former because their bulbous noses and low-pitch voices resemble the character of the same name and the latter because of a name tag that appeared over them in beta tests.
Notch uses both Twitter and Tumblr regularly to update his fans. He also often manages to cause massive web traffic on a scale worthy of Digg or xkcd when he tweets about a site he likes. Said traffic often involves people taking over chat sessions or forums simply to ask notch to do something in Minecraft. The ban hammer often follows.
Notch recently revealed that he was offered a position at Valve in September of 2010, but he turned them down. As Minecraft hadn't been released yet, he says it was one of the most difficult decisions he's ever made, but he felt that Minecraft was his chance to create a Valve instead of just working at Valve.
There's an achievement that requires about 329,700 kilograms of iron, a 1 km straight line, and a helluva lot of sticks.
Actually, as long as it's in a single trip, the 1km is cumulative (meaning, if the track bends, then as long as it bends back to the same direction you started the trip in, it picks up where it left off). You can ride for 10m forward, take a left for 50m, take a right for 990m, and you've got the achievement, for example.
The player is capable of holding 44,518,667 kilograms of material, assuming that they are wearing gold armor and every slot in the inventory is filled completely with gold blocks, as out of all the various materials in the game, gold is the densest - and thus heaviest - one in real life.
For those who are unfamiliar with metric or too lazy to do the conversions, this means that the player is capable of carrying just shy of 50,000 tons... all with no apparent strain or fatigue. Kinda make you wonder why he'd need tools at all, with that kinda strength...
Strangely, despite the player having immense strength, it's possible to fill his near-50,000-tonnes-capable inventory with 4.6kg...and he can't carry any more. This is done by filling the entire inventory with feathers, the lightest substance in the game at about 4g per. His Super Strength appears to be Zig-Zagged.
He can also swim in water with said 50,000 tons of gold, despite the fact that a human that heavy would probably sink in rock.
Because of the endermen's height, the middle of their body is their crotch. The middle of the body is also the "sweet spot" for them to become aggressive. So either the endermen are either some bizarre form of The Vamp, they're compensating for "something" by stealing blocks from your world and are embarrassed by it, or they are just offended by you staring at their crotch.
The Ghast is voiced by C418's cat. Just think.
The Endermen neutral sounds are warped recordings of words like "here", "what's up", and "uh oh" played backwards.
The tuxedo cat is based off of Jeb's actual cat Newton.
Probably by coincidence, the various types of damage rather nicely coincide with the four elements plus the four horsemen of the apocalypse. fire and lava are fire, drowning is water, suffocation is earth, falling is air, void and the /kill command are death, attacks are war, starvation is famine and poison damage is pestilence. The only question is whether explosions go with fire or war.