
15w14a Backport
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth15w14a Backport brings mobs, items, effects, and mechanics from Minecraft Java Edition snapshot 15w14a into Minecraft 1.21.1.
The Mobs:


The Pink Wither is a separate boss based on the Pink Wither concept from 15w14a.
Features
- Three heads, like the normal Wither.
- Pink appearance inspired by the original snapshot.
- A pink boss bar.
- A custom Pink Wither skull projectile.
- Heart particles replace the usual dark/green Wither-style particles.
- Its special attacks do not deal normal direct melee damage.
- During its special behavior it can interact with and grow plants in the world.
- Its summon is based on the Minecraft 2.0 April Fools concept.
- Drops 1 Nether Star and 50 XP when defeated based on 15w14a.
- It is a separate entity, so it does not replace the normal Wither.
Summoning
The Pink Wither uses the mod's Minecraft 2.0-inspired summoning:
- Pink Wool
- A Flower Pot
- A Poppy



The Love Golem is a custom golem inspired by the 15w14a concept and is based on the behavior of an Iron Golem.
Features
- Uses a pink-themed Love Golem texture.
- Uses Iron Golem-style combat.
- Launches faster attacks.
- Can attack non-player entities when they become hostile toward it.
- Does not attack players.
- Can be repaired using Pink Iron Ingots.
- A Pink Iron Ingot restores 25 health.
- Normal Iron Ingots are not used for its special repair behavior.
- Cannot receive Sharing or Caring effect.
Building a Love Golem
The Love Golem uses the mod's custom summoning:
- 4 Pink Blocks of Iron T-shaped
- A Carved pumpkin or Jack o'Lantern on top



The Smiling Creeper is a special Creeper variant inspired by the 15w14a April Fools concept.
Features
- Uses a smiling Creeper texture.
- Keeps the familiar Creeper swelling and explosion animation.
- It does not destroy terrain with its explosion.
- It deals no damage.
- The explosion drops 3 Poppies instead.
- The spawned Poppies cannot be picked up like in 15w14a.
- The special Poppies disappear after approximately 3 minutes
- Smiling Creepers can spawn naturally
The Smiling Creeper is separate from the normal Creeper.
Items:


The Obsidian Boat is a special boat inspired by the 15w14a concept.
Features
- Made for travelling across lava.
- Floats and moves on lava instead of sinking through it.
- Is completely immune to lava and fire.
- In dropped-item form are resistant to burning by fire or lava.
- Only one passenger.
- Has an obsidian texture.
- Requires pickaxes to destroy.
- The mining duration depends on the pickaxe.
Water Behavior
The Obsidian Boat is intentionally different in water:
- It sinks in water like in 15w14a snapshot.
- It can carry a passenger while sinking.
- The passenger is ejected once the boat has sunk below the water surface.
Recipe



Pink Iron is a material added for the Love Golem. It is used for repairing and building the Love Golem.
Pink Iron Ingot
The Pink Iron Ingot is the basic Pink Iron material.
Features
- Can be used to repair damaged Love Golems.
- One Pink Iron Ingot restores 25 health to a Love Golem.
- Can be crafted from 1 Iron Ingot + 1 Pink Dye.
- Can be smelted back into a normal Iron Ingot.
Recipe
Iron Ingot + Pink Dye → Pink Iron Ingot

This is a shapeless crafting recipe, so the two ingredients can be placed anywhere in the crafting grid.
Pink Block of Iron
The Pink Block of Iron is the block of Pink Iron material.
Features
- Is used as the main building material for the Love Golem.
- Can be crafted from 9 Pink Iron Ingots.
- Can also be created by combining 1 Iron Block + 1 Pink Dye.
- Can be smelted back into a normal Iron Block.
Recipe
9 Pink Iron Ingots → Pink Block of Iron

or:
Iron Block + Pink Dye → Pink Block of Iron

The block can be converted back into normal iron by smelting:
Pink Block of Iron → Iron Block
Love Golem Repair
Pink Iron is the special repair material for the Love Golem.
- 1 Pink Iron Ingot = +25 health
- Normal Iron Ingots do not repair Love Golems.
- Pink Iron therefore gives the Love Golem its own repair material.


Sharing is a mob effect inspired by the 15w14a Potion of Sharing.
The effect is intended for mobs, not players.
A mob affected by Sharing can give random useful items.
Sharing Loot
The possible drops include:
- Bread
- Coal
- Diamonds
- Gold Ingots
- Iron Ingots
- Lapis Lazuli
- Melon Seeds
- Pumpkin Seeds
- Redstone
- Saddles
Sharing does not affect players
Players cannot receive the Sharing effect.
It is intended effect that can be given only to mobs.
Sharing is available as:
- Potion of Sharing
- Long Potion of Sharing
- Splash Potion of Sharing
- Long Splash Potion of Sharing
- Lingering Potion of Sharing
- Long Lingering Potion of Sharing
- Arrow of Sharing
- Long Arrow of Sharing
Brewing
Awkward Potion + Golden Apple → Potion of Sharing
Its duration can then be increased using redstone:
Potion of Sharing + Redstone → Long Potion of Sharing
Splash and Lingering versions use the normal Minecraft potion conversion.
Arrows with Sharing effect are made using the normal Minecraft recipe with the Lingering Potion.

Caring is another mob effect inspired by 15w14a, with a bit of modification.
Instead of simply making mobs approach other mobs, Caring makes affected mobs actually try to attack them.
The effect is designed for mobs and does not work on players.
Caring Targeting
When a mob has Caring:
- It searches for suitable targets in approximately a 16-block radius.
- Caring can detect mobs even when they are behind walls.
- A wall does not prevent the mob from selecting a target.
- The mob still needs to be able to physically reach the target.
- Navigation attempts to find a route around obstacles instead of simply walking into a wall.
- Mobs that are underground or unreachable are not kept as permanent targets.
- If no valid target is nearby, the mob returns to its normal behavior.
- If a target later enters the detection range, Caring effect takes control again.
Current Target
Once a Caring mob starts fighting a target:
- It keeps that target until the target is killed, whenever possible.
- It does not switch between nearby mobs during an active fight.
- After killing its target, it searches for another target.
- If the mob does not successfully hit its current target for 15 seconds, the target can be abandoned and another target selected.
- The 15-second timer is based on failing to successfully hit the target.
This allows Caring mobs to navigate around walls and obstacles without randomly abandoning a target because the route takes time.

Caring and Passive Mobs
Caring can be given to normally peaceful mobs.
Examples include:
- Cow
- Pig
- Sheep
- Chicken
- Ocelot
- Allay
- Villager
- Other non-hostile mobs
When these mobs have a target, Caring takes priority over their ordinary behavior so they can efficiently move toward and attack their target.
When there is no target, the mob returns to its normal behavior.
Movement
Passive mobs using Caring have a slightly faster movement speed.
Villagers retain their normal movement, preventing Caring from making them appear to have a something like Speed effect.
Iron Golems and Love Golems
Iron Golems and Love Golems cannot receive Sharing or Caring.
However, they are still valid targets.
For example:
- A Pig with Caring can attack an Iron Golem.
- A Cow with Caring can attack a Love Golem.
- A Villager with Caring can attack an Iron Golem.
- The Iron Golem or Love Golem can react to being attacked normally.
This means the golems are protected from having Caring override their own AI, but they are not protected from Caring mobs attacking them.
Caring is available as:
- Potion of Caring
- Long Potion of Caring
- Splash Potion of Caring
- Long Splash Potion of Caring
- Lingering Potion of Caring
- Long Lingering Potion of Caring
- Arrow of Caring
- Long Arrow of Caring
Brewing
Awkward Potion + Brown Mushroom → Potion of Caring
Its duration can then be increased using redstone:
Potion of Caring + Redstone → Long Potion of Caring
Splash and Lingering versions use the normal Minecraft potion conversion.
Arrows with Caring effect are made using the normal Minecraft recipe with the Lingering Potion.
Frequently Asked Questions
Will the mod be available for Forge, and will it be backported to newer Minecraft versions?
Yes, I plan to release the mod for Forge. The main goal of this mod is to bring the content and features of the 15w14a snapshot to newer versions of Minecraft, while keeping the original feel as close to the original as possible.
When will the next update drop?
I'll try to work on the mod as much as I can in my free time, but keep in mind that I'm a solo developer working on this project. This is currently my first and only mod, so most of my work will be focused on it. Updates will mainly focus on fixing bugs, and making the mod as accurate to the original 15w14a snapshot as possible.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as backport15w14a-1.0-public.jar — drop this file into the mods folder
- Download size: 102 KB
- Download link checked 9 Oct 2026 — working
These come from our own check of the pack file, not from the source page.