1024000^2 Blocks, 2B2T Minecraft Server World Download Project, and Discoveries

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TLDR

  • Team archived ~24 TB of 2b2t world data across four dimensions using custom tooling, bots, and 109 days of runtime, the largest Minecraft world download ever.

Key Takeaways

  • Coverage: 1,024,000² Overworld, 512,000² Overworld snapshot, 256,000² End, and 100,000² Nether collected Dec 2025 - Apr 2026.
  • Custom stack built from scratch: zvcr file format, PlaceProxy world download server, elytra autopilots (Boost and Pitch40), and a datamining pipeline against .mca region files.
  • 28 bot accounts via BMProxy ran the 512k² pass in 17 days; the 1m² final pass used parallel Overworld and End bots over 109 days; total spend exceeded $3,000.
  • Nether roof access was only possible because 2b2t accidentally left it enabled after the 1.21.4 update, a short window exploited within a week.
  • Public services already live: 2b2t Wayback Machine (wayback.2b2t.place), map viewer (2b2t.place); torrent and open-source tool releases (PlaceProxy, zvcr) still pending.

Hacker News Comment Review

  • Commenters highlighted the broader 2b2t exploit history, pointing to the Nocom tracking attack as context for how seriously players treat server-level vulnerabilities.
  • There was some discussion of Minecraft lacking native spectator streaming, with one commenter sketching a minecraft:// URL scheme for block-streaming without server load.
  • A separate 200k² world download by CrisisSheep and pawstar released three days earlier due to timing collision; the projects are independent.

Notable Comments

  • @Tiberium: Details the Nocom exploit where attackers weaponized a server DoS report to PaperMC to gain covert player-tracking capability.

Original | Discuss on HN