The Architect invented the backpack in a unique and noble style, infused with mystical magical powers, allowing the Architects to manipulate and upgrade their shelters more efficiently.

The architect invented the backpack with a unique design that exudes an ancient and noble charm.

It is carefully carved from a gemstone called "galaxy stone", which shimmers faintly in the moonlight, like a starry star.

The shape of the backpack resembles a traditional leather backpack, but the surface is covered with ornate decorations sewn with gold thread and pearls, showing its nobility and luxury.

The material used by the architect to invent the backpack is equally extraordinary.

It is made of a hard carapace called a "dragon scale armor" that is as hard as the most powerful dragon scales and is light and durable.

The buckles and zippers of the backpack are made of "light and shadow metal", which shimmers in the sunlight and seems to be wrapped in a mysterious layer of light and shadow.

The core effect of the Architect's invention of the backpack is to reduce the time it takes to upgrade buildings in the shelter by 25%.

This means that architects can ramp up their shelters more quickly and get a head start on the competition.

In addition, the backpack adds three additional building upgrade slots, giving architects more room to increase the number of buildings they have.

Another unique feature of the architect's invention backpack is the ability to change the exterior color of the building at will.

This feature allows architects to adjust the color of the building to their own preferences and the overall style of the shelter, making each building unique.

In addition, it reduces the upgrade time of individual buildings by 50%, allowing players to grow and upgrade buildings that are more important to players.

In this mysterious survival game, the architect invention backpack has become an indispensable assistant for architects with its unique material and appearance, as well as powerful effects.

It's like a bright star, illuminating the path for architects to shine in the mysterious game of survival of the Restraint system.

And it's a pity that although the architect profession has insignificant combat effectiveness, it can build city walls, strengthen cities, and build bunkers, so that after the defeat of the alliance army in the War of the Gods, it was stripped of power by the gods.

The Architect's Invention Backpack is one of the few advanced building-type magic accessories in the Architect's series of magic accessories.

[Name: Hard Architect Invention Backpack]

[Type: Accessories, Special, Crafting Materials, Characteristics]

[Modifier Hard: Defense +1]

【Quality: Perfection】

[Effect 1: After the player wears this accessory, the duration of the Shelter building upgrade will be -25%]

[Effect 2: After the player wears this accessory, the upgrade time of a single building in the shelter will be reduced by 50%]

[Effect 3: After the player wears this accessory, they can change the color of the Shelter Defense Facility building at will]

[Effect 4: After the player wears this accessory, three additional shelter building upgrade slots will be added]

[Specialization Requirements: General B]

[Note: The Architect's Invention Backpack is a rare advanced type of shelter characteristic magic accessory, which has all the effects of the four basic types of shelter characteristic magic accessories, such as bricklaying knife, paint sprayer, extended grip claw, and portable cement mixer, and is a rarer building type magic accessory, after the player equips this accessory, it can play an effect regardless of whether it is in the shelter or not, but such accessories cannot take effect when they are not worn in the accessory slot]

After Li Xiya finished checking the panel data, Mei Zizi nodded, now that he has the architect's invention backpack, the upgrade progress of the shelter defense facilities of the Advanced Authority Shelter will definitely speed up a lot, which also reduces the time Li Xiya spends in this area in disguise.

And now, time is life for Li Xiya!

"All shelter fortifications have a 25% reduction in upgrade time, and then I can also designate the buildings I value to reduce the upgrade time by another 50% on top of the first effect?"

"Wonderful!"

Since the backpack invented by the architect has been made, even if it is more than eight o'clock in the evening, Li Xiya does not feel the slightest sleep, so after thinking for a while, Li Xiya took out a bottle of energy potion from the backpack of the Ice Rock Thorn Turtle Guardian, raised his head and drank it.

Starting tonight, upgrade the buildings of the Shelter Defenses!

Li Xiya took advantage of the night to walk to the courtyard of the High Authority Sanctuary, looked around, and walked to the side of the Intermediate Authority Scarlet Arrow Tower, summoning the upgrade panel of the building.

[Intermediate Authority: Crimson Arrow Tower Upgrade Requirements: Hellstone Bar x1200, Dungeon Bones x400, Meteorite Bar x3600, Crimson Points x1800, Sanctuary Level 9 (Upgrade duration 18 hours)]

[Upgrade: Yes/No]

Li Xiya looked carefully:

"Upgrading a mid-level authority scarlet arrow tower dungeon bones, meteorite ingots, and scarlet points are all small amounts, the biggest problem is still the hellstone ingots, and an intermediate authority scarlet arrow tower requires a full 1,200 hellstone ingots......"

The Intermediate Authority Crimson Arrow Tower is not the only type of building in the Sanctuary, so you can imagine how expensive it would be to upgrade all the Intermediate Authority Crimson Arrow Towers to the Advanced Authority Crimson Arrow Tower!

If it weren't for Li Xiya's inadvertent discovery of the Hellstone Bar Forged Self-Running Machine made by the Lava Dwarves during this Hell Biome Exploration Adventure, I am afraid that there would not have been enough Hellstone Bars to upgrade the current Shelter Defense Facility Building.

Good thing there are no ifs!

Li Xiya has indeed harvested a large number of Prison Stone Ingots, so the 1,200 Prison Stone Ingots currently needed to upgrade this Intermediate Authority Scarlet Arrow Tower are simply a hair on Jiuniu's body to Li Xiya, and they are not worth mentioning at all!

Li Xiya directly took out the Hellstone Ingot needed to upgrade the Intermediate Authority Scarlet Arrow Tower from the backpack of the Ice Rock Thorn Turtle Guardian, and immediately said:

"Level up!"

With Li Xiya's order, the Intermediate Authority Scarlet Arrow Tower, which stood in the courtyard of the High Authority Sanctuary, was like a towering red sculpture, exuding a fierce aura. However, this Arrow Tower is about to undergo a magnificent metamorphosis and be upgraded to the High Authority Crimson Arrow Tower.

The upgrade process has begun! Mysterious rays of light fell from the sky, enveloping the entire arrow tower.

These rays of light seem to have life, slowly penetrating into every stone and every inch of the tower. As the light penetrated, the exterior of the arrow tower began to become red-hot, as if a powerful force was brewing in it.

Suddenly, a powerful energy burst out from the depths of the earth, soaring into the sky. This energy is as hot as a flame and as hard as steel, it is the power of the bones of the dungeon, the essence of the Meteorite Bar, the soul of the Hellstone Bar. This energy quickly fused into the Crimson Arrow Tower, causing the Arrow Tower to radiate even brighter light.

Under the impact of energy, the appearance of the Crimson Arrow Tower has undergone earth-shaking changes. The original pattern has become more complex, like a vivid picture scroll, depicting the heat and power of the scarlet flame. The entire tower is covered in a layer of blazing red flames, as if a raging flame is dancing on the tower, exuding a terrifying and charming temperament.

At the same time, the attack and defense of the Crimson Arrow Tower have also been comprehensively improved. The upgraded Arrow Tower has a more precise attack ability and can easily hit targets from a distance. And the defense has also become stronger, like an impregnable fortress, able to withstand any fierce attack.

Eventually, when the energy dissipated, the Crimson Arrow Tower completed a gorgeous upgrade. It stands in the courtyard of the High Authority Sanctuary, like an eternal red monument, exuding a fierce aura.

The Crimson Arrow Tower is no longer comparable to the Crimson Arrow Tower of Intermediate Authority, and has become one of the most powerful offensive structures in the Sanctuary.

Because Li Xiya wore the Architect's Invention Backpack, and the two major effects took effect on a high-level Authority Crimson Arrow Tower at the same time, plus the Architectural Enlightenment Potion, and the gold Architectural Hammer from the side, the high-level Authority Crimson Arrow Tower, which originally took eighteen hours to upgrade, was upgraded in an instant.

Li Xiya raised his head and carefully looked at the high-level authority Scarlet Arrow Tower in front of him.

The appearance of the High Authority: Crimson Arrow Tower resembles a work of art forged from scarlet flames, and every inch is filled with fiery power.

The entire tower is covered in a layer of blazing red flames, as if a raging flame is dancing on the tower, exuding a terrifying and charming temperament. The exterior of the tower is full of details and intricate carvings, and every place exudes the air of high authority.

The material of this arrow tower is also extremely rare and precious. It is made primarily of three materials: Hellstone Bars, Meteorite Bars, and Dungeon Bones. The Hellstone Bar is a hard, spiritual ore that absorbs and reflects a variety of magical attacks, providing a powerful defense for the Arrow Tower.

Meteorite ingots are mysterious meteorites that fall from the sky, which possess great power and special magical properties, providing unparalleled attack power to the Arrow Tower. Dungeon bones are specially treated bones that are both hard and tough, providing solid support for the towers.

Every stone and every inch of the Scarlet Arrow Tower of High Authority is imbued with the aura of strength and defense. The entire arrow tower exudes a blazing aura, as if there is endless heat surging in it. This heat does not originate from the flames, but rather from the depths of the earth, imbuing the Crimson Arrow Tower with great vitality and power.

In the sunlight, the High Authority Crimson Arrow Tower shone brightly, as if a burning flame was shining across the sanctuary.

Majestic, mysterious, powerful and powerful, it is one of the most powerful offensive structures within the shelter and an object of fear for all enemies. Only when it is needed most will the Crimson Arrow Tower activate, unleashing its fiery and powerful power.

[Name: Advanced Authority: Crimson Arrow Tower]

[Type: Building, Crimson Exclusive]

[Level: Level 9]

[Quality: Perfect]

【Robust value:30000x4】

[Defense: 120]

[Area: 4 square meters]

[Height: 32m]

[Range: 1500 meters]

[Attack: 200+200]

[Attack Time: 1s]

[Passive Skill: Beaded Arrow (Advanced Authority: Crimson Arrow Tower's single attack, 25% chance to inflict Beaded Arrow Effect: Shoot two Crimson Arrows in a row at the enemy)]

[Passive Skill: Adrenaline (Advanced Authority: Scarlet Arrow Tower's single attack, 25% chance to increase your base attack by 150%, duration 5 seconds)]

[Arrow type is fixed to Crimson Arrow: Attacks come with a stackable Bloody Slaughter debuff (upon hitting an enemy, deal 20 damage per second for 15 seconds, this effect stacks up to 6 stacks, i.e. deals 300 damage per second)]

[Trait (1/11): Tree of Life Shelter (Restores 1 Solidity per second!] ）】

[Trait (2/11): Cactus Heart (Fixed 15 damage damage per attack!] ）】

[Trait (3/11): Buster's Blessing (All buildings in the Shelter Defense System gain 50 Defense Blessing!) ）】

[Trait (4/11): Buster's Inspiration (All buildings in the Shelter Defense System receive a 20% Defense Boost!] ）】

[Trait (5/11): Buster's Blessing (All buildings in the Shelter Defense System receive a 20% increase in Sturdiness!] ）】

[Trait (6/11): Abundant Blessing (All buildings in the Shelter Defense System have a fixed recovery rate of solidity per second increased by 3 times!] ）】

[Trait (7/11): Abundant Inspiration (All buildings in the Shelter Defense System have a fixed recovery of +3 Solidity per second!] ）】

[Trait (8/11): Abundant Blessing (All buildings in the Shelter Defense System receive a 3x increase in Fortification!] ）】

[Trait (9/11): Ice Witch's Blessing (All building attacks in the Shelter Defense System are fixed with Frost debuff, Freezing debuff, Frozen debuff!) ）】

[Trait (10/11): Ice Witch's Inspiration (All building attacks in the Sanctuary Defense System are increased by 100%!] ）】

[Trait (11/11): Ice Witch's Persistence (100% increased defense of all buildings in the Sanctuary Defense System!] ）】

[Upgrade Requirements: Palladium Repeater x1, Palladium Ore Bar x1200, Hellstone Bar x3000, Dungeon Bones x6000, Meteorite Bar x10000, Crimson Points x10000, Shelter Level 10 (Upgrade duration 36 hours)]

[Remarks: Envy Authority, Learn Authority, Have Authority, Harness Authority, Congratulations to the player, successfully stepped into the world of controlling authority, from now on, the attack power of the Advanced Authority Scarlet Arrow Tower will be further enhanced, and the passive skills Lianzhu Arrow, Adrenaline and other skills will also be further enhanced, and the Advanced Authority Crimson Arrow Tower will be additionally blessed by the three major authority effects, so as to obtain the bonus of various buffs, from now on, the Advanced Authority Crimson Arrow Tower will become the defense player to defend the advanced authority · The sharpest spear in the Sanctuary Defense System building! (End of chapter)