Australian startup Magikcraft, which teaches kids to code in JavaScript using Minecraft, set a world record this week. In partnership with Microsoft and IBM they killed 13,854 Minecraft Zombies using JavaScript lightning in 10 minutes, using the most performant Minecraft system on the planet - 48 physical cores, 256GB RAM.

Here's the world record: https://recordsetter.com/world-record/zombies-killed-minecraft-10-minutes-using-javascript-lightning/51109

And the engineering behind it: https://blog.magikcraft.io/engineering-a-world-record-at-magikcraft-3b5698f936d5#.vng24n6me