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Big cobble arena
Minecraft build “Big cobble arena”: 2,717 blocks, 45s to watch, from “a big cobble arena”. You will see cobblestone, sand.

Isometric preview rendered by Blocksmith from this build. Not a Minecraft screenshot, and not a Mojang texture. Drag to look closer, or use the buttons. One rendered angle: this page does not include the scene block coordinates, so it is not a 3D model.
Build this yourself
Type “a big cobble arena” and the free offline reader makes it on your computer. From 13, you sign in with a verified email. A new account includes 3 starter AI wishes, once. Plus covers a sentence the reader has not seen. Under 13, AI stays off.
Mac and Windows. On a phone, we email the link to your computer.
What you typed
a big cobble arena
The offline reader calls this Cobble Arena. The size is big. Walls are cobblestone, the roof is dark oak planks, and the trim is stone bricks. No height was set, so the plan uses its usual height for this size. It uses the stock arena plan.
This build has 2,717 blocks, 2,717 of them solid. The three most common are cobblestone (1,258), sand (588), spruce planks (438). Watch plays for 45 seconds, the length of this build’s timelapse. The seed is 1382542228, taken from the sentence, so the same words build the same thing offline.
Materials
Counted from the blocks in this build. The cubes are drawn by Blocksmith, not taken from the game. Air is not listed.
| Material | Block id | Count |
|---|---|---|
| cobblestone | cobblestone | 1,258 |
| sand | sand | 588 |
| spruce planks | spruce_planks | 438 |
| stone bricks | stone_bricks | 378 |
| cobblestone stairs | cobblestone_stairs | 44 |
| glowstone | glowstone | 11 |
| Name | Cobble Arena |
|---|---|
| Seed | 1382542228 |
| Solid blocks | 2,717 |
| Style | Cobble |
| Biome | Plains |
| Size | Large builds |
More in Arenas, Cobble and the full gallery.
How to build Big cobble arena in Minecraft
How to build Big cobble arena in Minecraft starts with one sentence. The steps below use the blocks Blocksmith actually placed, not a borrowed schematic.
- Type the sentence. Open Blocksmith and type “a big cobble arena”. The offline reader already knows this arena, so building it does not spend an AI wish.
- Read what it counted. This copy is large builds, tagged cobble and plains. It has 2,717 blocks, 2,717 of them solid. The three most common are cobblestone (1,258), sand (588), spruce planks (438).
- Place it in a world. Export the datapack into a Minecraft: Java Edition world, run /reload, then /function blocksmith:build. /function blocksmith:watch plays the timelapse, which runs 45 seconds for this build.
More ideas: Minecraft build ideas. Install steps: how to install a datapack.
Questions
How many blocks is Big cobble arena?
2,717 blocks, 2,717 of them solid. The seed is 1382542228, so the same sentence builds the same shape offline.
What sentence builds Big cobble arena?
Type “a big cobble arena”. The block count and the material list on this page were counted from that build.
Is Big cobble arena an official Minecraft build?
No. Blocksmith made the preview and the datapack. It is not a Mojang schematic and it is not approved by Mojang or Microsoft.





