The Japanese government has released a free Minecraft map replicating the G-Cans underground flood facility, developed by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT). The G-Cans, completed in 2006, is the largest underground flood diversion system in the world, designed to manage overflow from Tokyo's waterways during heavy rainfall. The Minecraft map accurately reflects the facility's design, including five large concrete silos and a network of tunnels spanning 6.4 kilometers. It was created using actual blueprints to provide a realistic experience. The G-Cans features a water tank that is 83 feet high and can discharge up to 200 metric tons of water into the Edo River every second. The map is available on the Edogawa River Office homepage.