Tunnel

Underground passage for transportation or utilities.

InfrastructureEngineeringTransportationConstruction

Complexity

Current best complexity is 6:

Tunnel
6
Discover this myself!

Statistics

Discovered by
33boards
Best recipe held by
5boards
First discovered
8 monthsago
Crafted
102times
Made with
67recipes
Used in
203recipes

Highlights

  1. First discovered by
    Federico's board
    · 8 months ago
  2. Lowest complexity6first held by
    secret
    · 3 months ago
  3. Last crafted by
    What is a human
    · 29 hours ago
  4. Last used in a recipe by
    What is a human
    · 29 hours ago

Related concepts

Brick
Wall
Wind Tunnel
Dam
Steam Engine
Skyscraper
Terraform
Fleet
Mudbrick
Seaplane
Lego
Zeppelin

Technical information

Concept ID
1094
Color
#444444
Emoji
🚇/⛏️🚇
Categories
Infrastructure, Engineering, Transportation, Construction
Best complexity
6
First discovered
Feb 10, 2026, 01:23 UTC
Trademarked
No
Copyrighted
No

About "Tunnel" concept

Tunnel can be discovered in Concepts, categorized under Infrastructure, Engineering, Transportation, Construction. Underground passage for transportation or utilities.

It has been discovered by 33 boards and crafted 102 times, first appearing 8 months ago. Tunnel can be created from 67 recipes, and goes on to appear as an ingredient in 203 others.

Tunnel was first discovered by Federico's board 8 months ago. The lowest-complexity recipe (6) is held by secret.

Related concepts worth exploring include Brick, Wall, Wind Tunnel, Dam, Steam Engine, Skyscraper, and 6 more.

Tunnel 🚇 | Concepts