What's New in Minecraft 1.21.11: The Mounts of Mayhem Update

Updated

Minecraft 1.21.11, the Mounts of Mayhem update, adds rideable mobs, undead mount variants, and a new weapon type. According to Minecraft Guides, the headline feature is the Nautilus — a tameable underwater mount that grants the Breath of the Nautilus effect, removing drowning while you ride it. The rest of the update splits into two threads: hostile mounts that roam the world, and Spears, a throwable melee weapon.

The Nautilus: An Underwater Mount That Solves Drowning

The Nautilus is the centerpiece of the update. It is tameable, lives underwater, and while you ride it you receive the Breath of the Nautilus effect — the practical result being that you no longer drown while mounted.

It is also customizable in two ways:

  • Saddles — required to ride, as with other mounts.
  • Nautilus Armor — an exclusive armor type in five tiers, running from Copper up to Netherite.

That five-tier spread matters if you plan to use the Nautilus as a long-term travel mount rather than a novelty: the progression mirrors standard armor tiers, so the upgrade path is familiar.

New Hostile Mounts and Undead Variants

The update doesn't only add a friendly mount. Three hostile mounted threats now roam specific biomes:

Mount Variant Where it appears Notable behavior
Camel Husks Undead Deserts Carry dual riders
Zombie Horsemen Undead Plains and Savannas Patrol these biomes
Zombie Nautiluses Undead Oceans Ridden by Trident-wielding Drowned

The dual-rider detail on Camel Husks is worth planning around — a single desert encounter can put two hostile riders against you at once. Zombie Nautiluses extend the underwater theme of the update into a combat threat, since the Drowned riding them carry Tridents.

Spears: A New Throwable Melee Weapon

Combat expands with Spears, described as a new throwable melee weapon. They come in seven material tiers and include an exclusive feature tied to the weapon type. If you follow the usual Minecraft material progression, seven tiers means Spears scale from the earliest available materials up through the endgame ones, so there is a version of the weapon for most stages of a world.

What This Means for Your World

If you want to try the update's content, the practical priorities are:

  1. Find and tame a Nautilus if underwater exploration or ocean travel is part of your play — the Breath of the Nautilus effect changes how long you can stay submerged while riding.
  2. Craft Nautilus Armor and work up the five tiers if you plan to keep the mount long-term.
  3. Prepare for hostile mounts by biome — deserts, plains, savannas, and oceans each have their own new threat, and the ocean one carries Tridents.
  4. Craft a Spear at whatever material tier your resources support, and test the throwable melee behavior before relying on it in a fight.

Minecraft Guides covers this update alongside its mod wikis, tools, and daily puzzles, so the 1.21.11 changes sit next to the site's existing mod and walkthrough content rather than in isolation.