Rainbow Unicorn

A unicorn that gallops through the sky and leaves a rainbow under its hooves.

Loaders: Fabric • Minecraft: 26.2 • Side: Client & Server

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A unicorn lives in the flowery corners of the world. It runs, but not on the ground:
it gallops through the sky, and under its hooves it lays a rainbow – seven bands of
glowing, translucent blocks that hold for a few seconds and fade behind it. You can stand
on the rainbow while it lasts.

Catch one, tame it the way you would a horse, put a saddle on it, and the sky is yours:
look up to climb, look down to dive, and the rainbow keeps forming beneath you.

• A sky gallop with a rainbow behind it — A wild unicorn picks a point 10-24 blocks away and 8-20 above the ground, runs there in a gentle arc, and picks the next. Every block it covers lays a row of seven rainbow blocks two blocks behind its hooves. The blocks glow, are walkable, and clean themselves up after about four seconds.

• Catch it with a golden apple — Anything that tempts a horse (golden apples, golden carrots) brings a unicorn down out of the sky to your hand. Feeding it raises its temper; so does staying on its back.

• Tame it like a horse, in the air — Climb on and hold on. An untamed unicorn keeps galloping with you aboard and rolls its temper every couple of seconds; lose the roll and it throws you off – with slow falling, so the landing is a float rather than a fall. Win it and it is yours.

• Ride it through the sky — With a saddle on, the rider steers. Forward and strafe as on a horse; where you look is where you climb or dive, and the jump key is pure lift. Stepping off in the sky gives you slow falling too.

• A unicorn of your own stays put — A tamed unicorn stops running the sky. It floats down to the ground under it, wanders a little as a horse does, and waits where you left it.

• Its own inventory — Shift-use a tamed unicorn (or press the inventory key while riding) for its screen: the saddle and horse-armour slots, a nine-slot saddlebag that travels with it, a live preview of the unicorn and its health.

• Rare natural spawns — Unicorns spawn on their own, rarely, in meadows, cherry groves and flower forests – about one in six of the animals a meadow spawns. The spawn egg is in the creative menu for everyone else.

A rainbow bridge laid across the sky, one row of seven bands per block galloped

The unicorn, saddled, in the toolkit’s studio

Gold horn, rainbow mane and tail on the vanilla horse gait

Required

None known. No conflicts have been reported.

1. Install Fabric Loader 0.19.3 or newer for Minecraft 26.2 (Java 25).
2. Drop unicornrainbow-<version>.jar and Fabric API into mods/.
3. Launch the game. Find a meadow, or use the Unicorn Spawn Egg.

0.1.0 · 2026-09-13

Added

• The unicorn: a flying horse with a gold horn and a rainbow mane and tail, on the vanilla horse gait
• The rainbow: seven glowing, translucent, walkable bands laid two blocks behind its hooves as it gallops, fading after about four seconds
• Catching (golden apples and carrots tempt it down), horse-style taming in the sky with a soft landing for a thrown rider, riding with look-to-climb and lift on the jump key
• Its inventory screen: saddle, horse armour, a nine-slot saddlebag, a live preview and its health
• A tamed unicorn settles onto the ground and wanders instead of running the sky
• Rare natural spawns in meadows, cherry groves and flower forests; a spawn egg in the creative menu

How do I get one down from the sky?

Hold a golden apple or a golden carrot. A unicorn within about ten blocks comes to you.

It keeps throwing me off.

That is the taming. Each throw raises its temper by five, and feeding it raises it too (a golden apple is worth ten). At sixty it gives in; a horse needs a hundred.

How do I go up and down while riding?

Look up while moving forward to climb, look down to dive, and hold the jump key for straight lift. Sneak to get off – you float down.

Can I stand on the rainbow?

Yes, while it lasts. Each row fades about four seconds after it was laid.

Does it work on a server?

Yes. Install it on both sides; the rainbow is real blocks and the taming is server-side.

Model and gait are the vanilla horse’s, with a horn modelled in Blockbench. Built and tested
against a running game with the MCP Toolkit. Development notes are in
DEVELOPING.md.

Released under the MIT license.

Issues and suggestions are welcome on GitHub.