Horde Of Mobs 1.21.130+ (Achievements Enabled)

You only need to activate one file per world, as each one has a different configuration!

Do you feel like too few monsters spawn in your game worlds — whether at night, in caves, or even in other dimensions? If so, this addon is for you!

This addon greatly increases the spawn rate of all hostile mobs. Every time a monster spawns, it has a chance to double up depending on which file you download: Easy Horde of Mobs (30% chance), Normal Horde of Mobs (40% chance), or Hard/Insane Horde of Mobs (50% chance).

But that's not all. This addon also raises the global mob spawn limit in your world. In vanilla Minecraft, once too many mobs are present, the game simply stops spawning new ones. This addon pushes that limit much higher, so you'll face relentless waves of enemies instead of empty caves and silent nights.

The improved spawn rates also affect mobs in structures. Whether you're exploring Trial Chambers, raiding Pillager Outposts, or battling through a Nether Fortress, expect significantly more hostile mobs to appear. These locations will become far more dangerous and challenging.

Best of all, this addon is fully compatible with other addons. It doesn't just affect vanilla monsters — it targets the entire monster family in Minecraft's code. That means if you use another addon that adds new monsters (from any mod or behavior pack), this addon will automatically increase their spawn rates and spawn limits too. No extra configuration needed. Just install and watch the chaos multiply.

Get ready for a true horde experience — everywhere, all at once, with every monster from every addon you love.

Note: This add-on does not modify any vanilla spawn files; it is made with scripts!

This add-on is completely Insane Difficulty you can download it if you want to increase the game's difficulty even more!

You can also download Mob Revive if you want your world to be even more chaotic!

Addon Gameplay:

Updated on April 11, 2026

• Now the number of mobs of the monster family increases, this causes monsters added by other addons to also increase their spawn rate!