The popularity of Minecraft is staggering. I don't know if there has ever been anything like it in games, with its popularity remaining at a massive high all these years later.
The game is still getting supported too, as you can see with this announcement of the Chinese Mythology Mash-Up Pack. This pack is centered squarely (no pun intended) around Chinese history and mythology, giving players a pre-built world to play around in. It's out October 4th and will be $5. There are also 41 new skins and 13 themed music tracks to dive into.
Take a look at the trailer here: