Do I need Forge or Fabric to use this data pack?

No. Data packs are vanilla Minecraft features and don't require any mod loader. You just drop the file into your world's datapacks folder.

How do I install a data pack in Minecraft?

Open your world's save folder, find the datapacks folder inside it, and drop the .zip file in there. Then load into the world and type /reload in chat if you're already in-game.

Does this work with other data packs?

It should work alongside most other data packs. Conflicts are more likely if another pack also modifies mob stats or abilities, so test before committing to a full run.

What versions does this data pack support?

There are two versions available: one for Minecraft 1.14.x and one that covers 1.15.x through 1.16.x. Make sure you download the one that matches your game version.

Is there a resource pack included and do I need it?

Yes, a separate resource pack download is provided alongside the data pack. You'll want it for the custom Ender Dragon music to work correctly.

Minecraft But It's Insanely Hard Data Pack 1.16.5, 1.15.2

This data pack cranks up mob difficulty to a point where even veteran players will struggle. Every mob in the game has buffed stats and a unique ability, and the Ender Dragon gets a full three-phase fight that makes the vanilla version look like a tutorial. If you’ve beaten the game and want something that actually pushes back, this one’s worth it.

Features

All mob stats buffed across the board
Unique special abilities added to every mob
Custom advancements
Custom music for the Ender Dragon boss fight
Randomized messages throughout the game

Mob Abilities

Here’s what each mob can do now. Some of these are genuinely nasty.

Bees (1.15 only): More aggressive, and they don’t lose their stinger after stinging you
Squid: Fires homing missiles within 10 blocks, moves faster underwater
Cow and Pig: Pseudo-explode when hit (no block damage, but still annoying)
Fish: Poison skin on contact
Bat: Drains your health
Chicken: Eggs-plode ability
Sheep: Explodes when sheared
Dolphin: Grants you poison immunity and regeneration
Pufferfish: Explodes in its final form and deals AOE damage
Water: Poisons you until you’re at half health
Ravager: Increased attack speed and knockback range
Pillager: Quick charge, first 5 arrows are fireworks
Vindicator: Gets a speed boost based on what material it hits
Evoker: Faster spell casting
Phantom: Blinds you when it hits you
Blaze: Fire spreads faster, and it keeps its distance from you
Witch: Teleports, releases bats when taking damage, nauseates on contact
Slime: Slows you down and increases the chance of knocking you airborne
Magma Cube: Releases lava on death
Stray and Skeleton: Bleeding effect (half a heart per second)
Spider: Shoots cobwebs
Enderman: Traps you until you die
Silverfish and Endermite: Small chance of triggering a horror world effect
Shulker: Faster bullet speed
Guardian and Elder Guardian: Blinds you on hit
Zombie: Moves at the player’s speed
Ghast: Dodges incoming arrows
Wither: Explodes when it drops below half health

Ender Dragon Fight

The dragon now has three phases. Each one ramps up the pressure.

Phase 1

Once all crystals are destroyed, special endermites spawn. They’re immune to fall damage, don’t apply the endermite effect, and call down lightning when they touch you.

Phase 2 (100 to 600 HP)

The dragon starts marking the player’s position with beacons that get struck by lightning a few seconds later. The frequency increases as health drops.

Phase 3 (450 HP or lower)

Homing lightning bolts spawn and strike the player on contact. Endermen within 40 blocks also take damage to keep the game from lagging out.

How to Install

Full installation steps are on the guide page: How To Download & Install Data Packs