Metallurgy technology
60 red and 25 green tech points
Simple Barricades is a Metallurgy technology in column 7 of the tech tree. Researching it costs 60 red and 25 green tech points. It needs Reinforced Plank first. It unlocks Barricade I, Spiked Barricade I and Fortified Barricade I.
Branch
Column
Red points
Green points
Blue points
Total points
Unlocks
Reputation