How to Make Tunnel in Little Alchemy 1 Base Game Geology A long horizontal hole. 📋 View All Recipes & Hints ↓ Also in Little Alchemy 2 → How to Make Tunnel 1 hint engineer + mountain = Tunnel + Show full crafting path from base elements What Can You Make With Tunnel? 0 elements This element isn't used to create other elements. ← Back to All Elements