● Covered by 1 source · 1 reportLow impact1 neutral
Minecraft Players Map 80TB 2b2t Server, Create Custom .zvcr Compression Format
Key points
- Minecraft's 2b2t server, 80TB in size, was fully mapped by a player team.
- The team developed a custom .zvcr compression format to reduce the data to 15TB.
- The project took 22 months, from 2024 to April 2026, using 28 bot accounts.
- 2b2t is an anarchy server with no rules, staff, or map resets since 2010.
Mapping the Anarchy Server
A team of Minecraft players successfully mapped the entirety of the 2b2t server, known as Minecraft's oldest anarchy server. The project, named 2b2tplace preservation, began in 2024 and concluded in April 2026 after 22 months of work. The team utilized 28 bot accounts to precisely map over one million blocks across the Overworld, Nether, and End dimensions.
Custom Compression for Large Data
The 2b2t server has a data footprint exceeding 80TB. To make this massive dataset shareable, the team engineered a custom file compression format called .zvcr (Zstd-compressed Version Controlled Regions). This allowed them to compress the 80TB of data down to a 15TB download, addressing the challenges of storing and distributing such a large archive.
The Nature of 2b2t
2b2t, short for 2builders2tools, is a Minecraft server launched in 2010 that operates without rules, staff moderation, or map resets. This anarchic environment has led to significant changes in its landscape over the years. The preservation project aimed to archive the server's state before further updates altered its essence.
Resource Investment
Storing the 80TB of data would require substantial storage capacity, such as eight 8TB M.2 SSDs or five 16TB SATA SSDs. The team's expenses included several thousand dollars for storage equipment, along with over $3,000 for priority queue purchases and server rental costs, as detailed on their GitHub page.
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Primary sources
GitHub 2b2tplace/1m_releaseReporting from
A team of Minecraft players completed a project to map the entire 80TB 2b2t server, compressing the data to a 15TB download using a custom .zvcr format. This effort preserves the state of Minecraft's oldest anarchy server, which has no rules or map resets.