Survive for all and get a D-class simulator

Entering the red room, there was only a red metal treasure chest.

The treasure chest disappeared after being opened, revealing two items inside: a shelter upgrade blueprint and a low-grade space crystal.

【Use 2nd-tier shelter upgrade blueprint?】

"Use."

【Please collect 10 first-tier mutated creature organs as shelter upgrade materials (0/10)】

'It dropped? Are blueprints easier to find in the deeper levels of the maze? Or is it time-related?'

Lin Ye was a little surprised. The drop rate for blueprints during system events has always been low, but this time, it dropped from the first chest.

'There are still organs stored in the shelter's refrigerator. I can upgrade the shelter as soon as I get back.'

Putting away the space crystal, he continued to explore the maze. Like the first level, Lin Ye quickly passed through the corridors, looking for locked rooms.

Soon, he found a second locked room, but he didn't approach the door because most of the corridor was submerged in some kind of red liquid, and the locked door was in it.

'...Forget it, let's take another route.'

Lin Ye didn't hesitate for long before giving up on this room. His experiences during this time had taught him to never touch unknown liquids.

Switching to another corridor, Lin Ye quickly found another locked room. He used the key to open the door, and a first-tier mutated blood corpse rushed out.

After drawing his blade and dealing with the blood corpse, Lin Ye was about to enter the room when he suddenly heard a slight tapping sound from the end of the corridor.

Ding, ding, ding, ding...

A blood corpse with six sharp legs came around the corner and entered Lin Ye's view.

This thing looked like a human mutated into a hairless spider. The torso was still human, but where its feet should have been, they had fused into a dark red tail.

This ghastly thing once again reminded Lin Ye of the dangers of mutation. If he didn't control the degree of mutation, this would be the fate of everyone who absorbed spirit energy.

The spider-human quickly rushed towards Lin Ye, its six legs constantly tapping on the floor, making crisp sounds.

Lin Ye scanned the spider-human with his mental power.

Second-tier mutated creature, three mutated organs: the organ in the abdominal cavity that controls spirit energy, the foremost leg, and the tail.

If he didn't use the speed rune, the spider-human's movement speed would be much faster than Lin Ye's, so Lin Ye stood still and focused his mind on sensing its every movement.

The spider-human crashed directly into Lin Ye, simultaneously using two forelimbs to stab at Lin Ye's head and body.

Lin Ye activated the mutated spirit energy defense on the Nightshade Dress to forcefully block the opponent's attack, and stabbed the Red Blade into the spider-human's abdomen, directly destroying its organs.

Thump!

The spider-human's tail slammed into the spirit energy defense, shattering it and sending Lin Ye flying a short distance.

Lin Ye took advantage of the momentum to quickly retreat. The opponent's internal organs had already been destroyed. Even a mutated creature couldn't ignore this level of injury. It would be better to stall for a while.

The spider-human continued to rush towards Lin Ye as if it hadn't been injured, but Lin Ye could sense the unstable state within the spider-human's body, so he directly used the acceleration rune engraved on his pants to quickly retreat.

Soon, the spider-human entered a weakened state. Only then did Lin Ye rush towards the spider-human, use the cutting rune, and cut off its forelimbs with one slash.

The spider-human once again swung its tail to lash at Lin Ye. Lin Ye had prepared a layer of spirit energy defense in advance, barely blocking the tail's strike, and then used the Red Blade to cut off its last mutated organ.

After dealing with the spider-human, Lin Ye processed the spider-human's corpse while absorbing the surrounding spirit energy into his body.

The Red Maze wasn't a battlefield. The spirit energy density here couldn't support Lin Ye continuously inscribing runes, so when using runes continuously, he had to consume the spirit energy in his body.

In addition, after each use, spirit energy items needed a period of time before they could be used again.

On the spider-human, Lin Ye found a red card he hadn't seen before. It was different from the mutated card style and could only be brought back to the shelter to check the system information.

Lin Ye put the three second-tier mutated organs into his backpack and collected some usable spirit energy materials before letting go of the spider-human's ruined corpse.

In the red room that had been opened earlier, there was also a metal treasure chest, which contained a large bundle of red fabric.

'Is this some kind of spirit energy material?'

Putting away the fabric, Lin Ye continued to explore the maze.

During the exploration, Lin Ye encountered several corridors soaked in red liquid again. Out of caution, he didn't approach these abnormal areas.

Because he needed to detour, Lin Ye spent a long time finding the third locked room.

Opening the door, there was a first-tier blood corpse inside.

This time, Lin Ye didn't directly deal with it. Instead, he cut off its limbs and kept cutting off the newly mutated limbs until it was safe enough before stopping.

Opening the metal treasure chest in the room, there was only a sealed metal syringe inside.

Putting away the syringe, Lin Ye grabbed the blood corpse by the neck like he was catching a rabbit and brought it back to the corridor where he had previously encountered the red liquid.

Maintaining a safe distance, Lin Ye forcefully threw the crippled blood corpse into the red liquid.

After touching the red liquid, the blood corpse began to mutate rapidly. In less than ten seconds, it mutated from a crippled blood corpse into a small spider-human covered in limbs.

With that terrifying degree of mutation, as long as he touched it, his body would undergo local mutation.

He didn't want to grow any strange attachments on his body yet.

Setting up a spirit energy defense and confirming that he wouldn't be touched by the liquid, Lin Ye stopped and stabbed the small spider-human to death with one slash.

This time, Lin Ye didn't dissect the corpse. He wasn't very interested in this kind of liquid that could accelerate mutation, and he didn't have the qualifications or conditions to study this dangerous thing right now.

There were many pools of water in the deep layer of the maze, which seriously affected Lin Ye's exploration speed. Until the countdown ended, he didn't find the special room in the deep layer.

...........

Returning to the shelter, Brother Chicken was still incubating eggs. Lin Ye submitted the ten frozen mutated organs for the shelter upgrade task as soon as possible.

【Shelter upgrade task completed. Upgrade the shelter tier?】

"Yes."

【Advancement completed】

Lin Ye checked the new shelter information:

【Shelter Information】

【Level: 2nd Tier】

【New Function: Basic Loot Space】

【Status: Absolutely Safe (21 days, 13 days remaining)】

【Note: Please upgrade your shelter level within 21 days】

The new function, Basic Loot Space, was similar to the previous Loot Space, but the Basic Loot Space was only one cubic meter and required survivors to actively put the items they wanted to store inside.

This function could only be used during system events. It couldn't put things from the shelter inside, nor could it be used in simulated missions.

After upgrading the shelter, Lin Ye began to check the item information he had obtained this time.