Mojang has officially revealed its next major Minecraft update, dubbed “Mounts of Mayhem,” which corresponds to version 1.21.10. Following the “The Copper Age” update released on September 30, it is anticipated that “Mounts of Mayhem” will launch in late December. This release schedule aligns with Mojang`s pattern of delivering quarterly updates to the game.
Expected Release Date for Mounts of Mayhem
The “Mounts of Mayhem” update is scheduled for a release in December 2025. This will be the fourth significant game drop from Mojang in 2025, fulfilling their commitment to four annual updates. Players who engage with the game`s Snapshots program, offering beta access to new content, might already be familiar with some of the features arriving in this upcoming update.
Key Features of the New Minecraft Update
While comprehensive details are still emerging, the “Mounts of Mayhem” update is confirmed to introduce a variety of new rideable creatures and a brand-new weapon to the Minecraft world.

The Nautilus
Building on the existing Nautilus shells, this update introduces the Nautilus as a new rideable mob. As an inherently aquatic creature, it offers players their first opportunity to ride a mount underwater. While mounted, players will benefit from the “Breath of the Nautilus” status effect, eliminating concerns about drowning during subaquatic explorations.
Taming a Nautilus is achieved by using pufferfish, after which a saddle can be equipped to transform it into a rapid underwater vehicle. Players can also enhance their Nautilus with armor crafted from copper, iron, gold, diamond, or Netherite. It`s crucial to remember that the Nautilus cannot survive on land. Keep an eye out for its undead variant, the “Zombie Nautilus,” which is sometimes seen being ridden by Drowned mobs.

Zombie Horses
Previously confined to Creative mode, Zombie horses are now making their way into Survival mode with the “Mounts of Mayhem” update. These distinctively green-tinged undead horses will naturally spawn in Savannah and Plains biomes. They are passive mobs, though they might appear with Zombies riding them. While Mojang has confirmed their rideable nature, the exact method for taming these unique creatures is yet to be disclosed.

The Spear
For players seeking expanded combat options, the “Mounts of Mayhem” update introduces the all-new Spear. This tiered weapon is versatile, suitable for both close-quarters melee and mounted combat. It allows for charged attacks to knock enemies off their mounts and quick jab attacks to keep foes at bay. A notable feature is that the Spear`s damage output significantly increases based on the player`s travel speed. Spears can be crafted from various materials—copper, iron, gold, diamond, or Netherite—each influencing the weapon`s statistics. Beyond horseback, players can also amplify the Spear`s damage by using it while gliding with Elytra or riding in a minecart.
Recent Minecraft Update History
For reference, here are the preceding Minecraft updates and their respective release dates:
- The Copper Age – September 30, 2025
- Chase the Skies – June 17, 2025
- Spring to Life – March 25, 2025
