Minecraft fans, saddle up! Mojang Studios has officially dropped Mounts of Mayhem, the final game drop of 2025, bringing chaotic mounted battles, new underwater adventures, and a spear that's ready to skewer your foes. This free update lands as Java Edition 1.21.11 and Bedrock Edition 1.21.130, introducing rideable nautiluses, zombie horsemen in survival, camel husks, and more.
Whether you're charging across deserts on undead camels or diving deep with nautilus armor, this update promises mayhem on land and sea. But when exactly does it hit your game, and how do you grab it? Let's break it down.
Release Time: When Does Mounts of Mayhem Go Live?
Mojang hasn't announced an exact UTC rollout time, but based on historical patterns for game drops (like previous winter updates around mid-afternoon UTC), expect it to start appearing between 15:00–18:00 UTC (3:00–6:00 PM UTC) today, December 9. Java's latest Release Candidate 3 dropped yesterday (Dec 8), signaling the full release is imminent, while Bedrock previews are finalized.
Here's a handy table of estimated rollout times by timezone (adjust for your location – it may vary slightly by platform):
| Timezone | Estimated Start Time |
|---|---|
| UTC | 15:00 – 18:00 |
| EST (US East) | 10:00 AM – 1:00 PM |
| PST (US West) | 7:00 AM – 10:00 AM |
| GMT (UK) | 3:00 PM – 6:00 PM |
| CET (Europe) | 4:00 PM – 7:00 PM |
| IST (India) | 8:30 PM – 11:30 PM |
| JST (Japan) | 12:00 AM – 3:00 AM (Dec 10) |
| AEST (Australia) | 2:00 AM – 5:00 AM (Dec 10) |
Keep an eye on the official Minecraft Launcher, app stores, or consoles – it'll auto-prompt when ready. If it's not live yet in your region, servers and stores often roll out progressively.
What's New in Mounts of Mayhem?
This drop amps up combat with mounts and a versatile new weapon. Highlights include:
New Mobs & Mounts
- Nautilus: Tamable aquatic mount for underwater dashing (tame with pufferfish). Ridden nautiluses grant infinite air via "Breath of the Nautilus" effect.
- Zombie Nautilus: Undead variant, sometimes with drowned jockeys – tameable but hostile at first.
- Camel Husk: Desert undead camel with husk and "parched" (Weakness arrow-shooting skeleton) riders.
- Zombie Horse: Finally spawns naturally in plains/forests at night with zombie spear jockeys – tamable!
- Parched: Sun-immune desert skeleton firing Weakness arrows.
New Gear & Mechanics
- Spear: Tiered melee/ranged weapon (wood to netherite). Jab for close-range, charge for speed-based damage. Exclusive "Lunge" enchantment for bursts.
- Nautilus Armor: Tiered set for nautiluses.
- Netherite Horse Armor: Ultimate protection via smithing table.
- Horses (and kin) now swim without sinking.
Piglin bartering tweaks, spawn egg sorting, and more polish the experience. Full changelogs will drop post-release on minecraft.net.
How to Download Mounts of Mayhem
Once live, updating is straightforward. Here's how by edition/platform:
Java Edition (PC via Minecraft Launcher)
- Open the Minecraft Launcher.
- Go to Installations tab.
- Click New Installation.
- Select Latest Release (or manually choose 1.21.11 from the version dropdown once available).
- Hit Create and Play.
Pro tip: If snapshots/pre-releases are enabled, toggle them off for stable. Servers? Download the server JAR from minecraft.net once posted.
Bedrock Edition
- Windows 10/11 (Launcher): Launcher > Bedrock tab > Play (auto-updates).
- Mobile (iOS/Android): App Store/Google Play > Update Minecraft.
- Consoles (Xbox, PlayStation, Switch): Check My Library or Updates section – force update if needed.
- Marketplace Worlds: Features integrate automatically.
No Minecoins required – it's a core update!
Troubleshooting & Tips
- Not seeing it? Restart launcher/app, check internet, or wait 30–60 mins for global rollout.
- Server Owners: Update to 1.21.11 JAR; test in RC3 first.
- Mods/Packs: Fabric/Forge may need quick updates – check CurseForge.
- Dive in with a new world to spawn new mobs safely.
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