Igloos: The Basement, the Cure and Finding One

A snow hut with a secret

Igloos only show up in the cold: snowy plains, snowy taiga and snowy slopes. The dome is snow blocks with a couple of ice windows, a furnace, a crafting table, a red bed and a torch, and a square of white carpet in the floor. That's the whole thing for half of them.

The other half have a trapdoor under the carpet. Break the carpet, open the trapdoor and a ladder takes you down through the dirt into a stone brick basement. Down there you get a brewing stand, a cauldron, a chest, and two little cells behind iron bars. One holds a villager. The other holds a zombie villager.

That second cell is the reason to care. A zombie villager you can reach safely, plus the exact items to cure it, sitting in the same room. It's the cheapest discount trader in the game.

How many igloos have a basement?

The usual answer online is "about half". We wanted a real number, so we scanned seeds 1 to 400 on Java 26.3 and took every igloo in a 4,000 × 4,000 block square around spawn. The engine decides the basement exactly the way the game does, so each one is either yes or no.

So it really is a coin flip, and the bigger problem is finding an igloo in the first place. 42% of seeds didn't have a single one within 2,000 blocks of spawn. Snowy biomes are patchy and igloos need one of three specific ones, so plenty of worlds just don't get any nearby.

Of the igloos we found, 613 had snowy plains under the marker, 495 snowy taiga and 77 snowy slopes. The rest sat right on a biome edge next to a frozen river or a grove. If your map has a big white patch, that's where to look.

The best igloo seed we found: 358

Seed 358 is silly. Spawn is at 0, 0, and the three closest igloos are lined up north to south: 16, −192 (193 blocks away), 16, 288 and 0, 624. All three have basements. All three are in snowy taiga. You can walk to the first one before your first night.

The basement chest there holds five apples, three wheat, two rotten flesh, a stone axe and one golden apple. That last item is the important one, and it's not luck. Every basement chest the engine opened in our scan had exactly one golden apple. The rest of the chest changes (coal, wheat, apples, gold nuggets, the odd emerald) but the apple is always there.

Seed 372 is a decent backup: four igloos with basements inside 1,000 blocks, the closest at 288, 32. Its chest is mostly coal, 13 of it, which honestly isn't bad on day one.

Curing the zombie villager

Everything you need is in the basement, apart from patience. The brewing stand has a splash potion of weakness in it, and the chest has the golden apple. Here's how we do it:

1. Take the potion out of the brewing stand and the apple out of the chest. Don't drink anything.
2. Throw the splash potion at the zombie villager through the bars. You'll see the weakness particles on it.
3. Hold the golden apple and use it on the zombie villager. It shakes and starts giving off red particles. That's the cure running.
4. Wait a few minutes and keep the room dark and closed. Don't break the cell open early; until it finishes it's still a zombie and it will go for the other villager.
5. When it turns back into a villager, give it a job block. Its trades will be cheaper because you cured it.

You've now got two villagers in one basement. That's not a breeder, but it's a start. Most people lead them up the ladder with a boat or just build a trading hall right there under the snow. It's dark, it's out of the weather, and nothing spawns in a lit stone brick room.

Finding one on your own seed

Open the igloo finder, put your seed in and pick your version. Every igloo is marked, and the popup tells you whether it has a basement on Java, so you only walk to the good ones. Clicking an icon also gives you the coordinates and a ready-made /tp if you're in creative scouting first.

If there's nothing within a couple of thousand blocks, look for snowy biomes with the biome finder first. Igloos follow the snow. And if you're planning a trading setup anyway, a snowy village nearby helps; the village guide covers what each village type gives you.

Bedrock igloos

Bedrock igloos are placed with their own rules, and the finder follows them, so pick Bedrock in the edition box and the positions change. On seed 358 the nearest Bedrock igloo is at 88, 344, 355 blocks from spawn, instead of the Java one at 16, −192.

What we can't do on Bedrock is tell you which igloos have a basement or what's in the chest. The map shows the igloo, you check under the carpet. The basement itself works the same way when it's there: potion, apple, two prisoners.