Japanese government releases free Minecraft map you can play right now

https://www.dexerto.com/minecraft/japanese-government-releases-free-minecraft-map-you-can-play-right-now-3199125/

James Busby May 26, 2025 · 1 min read
Japanese government releases free Minecraft map you can play right now
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Japan’s government has uploaded a free Minecraft map, which features the world’s largest underground flooding diversion facility, and you can check it out right now.

As spotted by Automaton, Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has uploaded a free Minecraft map. The ambitious level features Japan’s Metropolitan Area Outer Underground Discharge Channel, the world’s largest underground floodwater diversion facility. 

Known as G-Cans, the iconic structure was built in 2006 to help mitigate severe flooding during typhoon seasons. As mentioned on the Japan Travel site, G-Cans diverts water from heavy rainstorms about seven times a year and keeps the streets of the northern Tokyo area from becoming rivers. 

Japanese gov uploads free Minecraft map

The structure is most famously known for its colossal concrete tunnel system, which runs 50 meters deep and 6.3 kilometers long. As shown in the video, players can descend into the iconic structure to see how the flood mitigation system works, while marveling at the monolithic pillars that run along the tunnel. 

“We have realistically reproduced the huge shaft, epic-scale pressure-regulating tank, drainage pump equipment, and other features of the Metropolitan Area Outer Underground Discharge Channel,” wrote Japanese government officials. 

As for the reason behind recreating the flooding system, government officials stated that the map was designed so that players can learn about the importance of infrastructure development and the creation of disaster prevention facilities.  

“When designing the world data, we based it on actual blueprints and created it for Minecraft, pursuing realism. In addition, the game also includes ways to enjoy Minecraft, such as checking out places and facilities that are normally off-limits.”