Minecraft Simulation Suggests Mobs Can Kill Ender Dragon After Nearly 2 Billion Years

A custom Minecraft simulation suggests mobs could theoretically kill the Ender Dragon without player input, but only after around 1.975 billion simulated years under extremely specific starting conditions.

YouTuber RedLogic created the experiment to test whether the game's existing mob behavior could eventually produce everything needed to defeat the boss. Rather than running an actual world for billions of years, he built a custom simulation that calculated how long the necessary rare interactions could take before finding a timeline where the Ender Dragon finally died.

The setup required an End Portal that had already activated naturally because mobs cannot create Eyes of Ender or place them into an incomplete portal.

An End Portal contains 12 frame blocks that need Eyes of Ender before it activates. RedLogic therefore used world seed -535646876083114041, where he found a naturally generated End Portal with all 12 eyes already in place. Mojang confirms that players normally have to fill the portal frames themselves before they can enter the End.

The portal also needed the right surroundings. RedLogic's setup placed it beneath a snowy biome, which made another extremely unlikely chain possible.

Endermen can pick up and move certain blocks. Given enough time, one could move a carved pumpkin onto snow in the correct arrangement to create a Snow Golem. In the simulated timeline, the first important pumpkin movement happened after tens of thousands of years.

The route into the End depended on mobs repeatedly interacting in ways that were never designed as a progression system.

Snow Golems attack nearby hostile mobs, including Endermen. Their attacks can also provoke Creepers, whose explosions gradually destroy surrounding blocks. Over enough simulated time, those explosions could open passages through the stronghold and allow mobs to reach the active portal.

RedLogic's simulation put the first Snow Golem on the path toward the portal after roughly 34,777 years, with another few thousand years passing as the required blocks moved into position. Opening a usable route from the End-side portal area took around 2.9 million simulated years.

Once inside the End, Snow Golems could fire at Endermen and accidentally hit the End Crystals that heal the Ender Dragon. One golem spent around 18 million simulated years wandering the dimension between successful crystal hits.

After the crystals were gone, Creepers provided a theoretical way to damage the dragon itself. A Snow Golem could provoke a nearby Creeper at the right moment, allowing the explosion to catch the dragon when it moved close enough.

Repeating that process eventually reduced the boss's health to zero. At nearly a quarter of a billion simulated years, the dragon had lost only around 2% of its health. It finally died at approximately 1.975 billion years.

The experiment did not simulate every individual Minecraft tick across two billion years.

RedLogic instead used a probability-based simulation that sampled how long meaningful events could take, such as an Enderman moving a required block or a Creeper exploding in the right place. This allowed the simulation to skip the enormous stretches where nothing useful happened and focus on the probability of each step in the chain.

The 1.975-billion-year figure is therefore not a guaranteed countdown for an unattended Minecraft world. It represents a simulated timeline under the specific starting conditions RedLogic created, including the exceptionally rare completed End Portal.

Defeating the Ender Dragon creates an exit portal back to the Overworld. Mojang says the End Poem and credits appear when a player enters that portal, marking what the game calls its official "End," although Minecraft itself can continue afterward.

RedLogic's experiment therefore demonstrates that, under extremely specific starting conditions, Minecraft's existing mob behavior can theoretically kill the Ender Dragon without a player directing it. A player would still be required to enter the exit portal and actually display the End Poem and credits.