C174 CHAPTER 174

Ding! You have consumed [Energy Crystal] * 500,000, [Steel] * 50 tons!

Congratulations, you have obtained [Automatic Watchtower] * 1000 tons, and it has been stored in your storage space!

Christopher traded the [Automatic Watchtower] to Isaac, who immediately placed 110,000 Energy Crystals and a Talent Crystal.

Both sides clicked confirm