Minecraft Bastion Finder (Java)
Type your world seed to get the bastion remnants closest to you, with exact X and Z coordinates, the distance and a /tp command. Works for Java Edition 1.16 to 1.21.4, in Nether coordinates.
Runs on your device · nothing uploaded
This tool is code that runs inside your browser. Your files, text and pictures are read here and never sent to a server, so it even works offline once loaded. Signed in? Only what you save to your account (My Kit, wardrobe) or publish is uploaded.
Bastion Remnant facts
| Fact | Details |
|---|---|
| Added | Java 1.16 |
| Where | Every Nether biome except basalt deltas |
| Worth it for | Netherite upgrade templates, ancient debris, gold blocks, the Snout armour trim and the Pigstep disc. |
| Dimension | Nether |
How to use it
- Type /seed in game and copy the number into the seed box (text seeds work too).
- Pick the Java version your world was created in.
- Enter your current Nether X and Z to sort the bastion remnants by distance from you.
- Copy the /tp command, or open the spot on the seed map to see the biomes around it.
How it works
The finder recreates Minecraft's own structure placement from the seed in your browser, using the open-source cubiomes library compiled to WebAssembly. For each area where a bastion remnant can start, it works out the exact start point, then checks the biome there the same way the game does. Every Nether biome except basalt deltas. Bastions and nether fortresses share one 27 × 27 chunk grid since 1.16. Nothing is uploaded: the seed stays on your device.
Questions
How do I find a bastion remnant without the seed?
Explore with a map and a fast route: in the Nether, travel along an axis on a strider or with a boat on ice. Single-player worlds always show the seed with /seed, so the finder is much quicker.
Does this work on Bedrock Edition?
Not for structures. Bedrock shares Java's biome generation since 1.18, but it places structures with different rules, so these coordinates only match Java worlds.
Is using a finder cheating?
It reads the same information the game uses to build your world. In single player it's up to you; on servers, check the rules, because some ban seed tools.
What will I find in a bastion remnant?
Netherite upgrade templates, ancient debris, gold blocks, the Snout armour trim and the Pigstep disc.
Are bastions dangerous?
Yes: piglin brutes always attack, and the treasure variant has magma cubes and lava. Wear at least one piece of gold armour so ordinary piglins leave you alone.
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By PickaxeKit Editorial Team. Updated 2026-11-09.