Global Cataclysm: Sanctuary Unlimited Upgrade

Solar flares erupted, huge meteorites descended, and the Great Calamity was about to arrive. The terrifying scenes of the Ice Age and the extinction of dinosaurs were about to reappear.

Wu Di had transmigrated to this world and was about to face the end of the world!

Fortunately, he had obtained the Mechanical Brain and activated his own Sanctuary System, allowing him to level up infinitely!

Iron door → Sandwich door → Alloy door → Laser tunnel

Crossbow Shot → Small Caliber Machine Gun → Large Caliber Machine Gun → Thunderstorm Machine Gun → Machine Light Cannon

Radiation Protection Suit → Exoskeleton Armor → Mechanical Armor → Small Mech → Giant Mech

Crossbow manufacturing platform → Firearm workbench → Firearm manufacturing room

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(PS: Sanctuary Unlimited Upgrade, Cataclysm Apocalypse background, new book opened, please collect!)）

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