活塞

Tasks (1)

Piston×3Items

Rewards by difficulty

Easy

Bronze Plate×64

Normal

Bronze Plate×8

Expert

Bronze Plate×2

Prerequisites

• 红色合金2. 蒸汽时代(Steam Age)

Unlocks

• 低压蒸汽压缩机2. 蒸汽时代(Steam Age)