Survival in a cave: All my supplies depend on digging

The fierce and vicious appearance of the goblin would be frightened by anyone's estimate, but the only one he encountered was Ye Fan.

Ye Fan didn't have a trace of panic or fear in his heart at this time, and the only thought in his mind was.

"If the mucus in this disgusting thing's mouth rubs against me, I don't have to keep stinking...

Under this extreme emotion, Ye Fan directly swung the long sword in his hand and slashed at the goblin's head.

"Huh!"

Ye Fan raised and fell with his sword, and he didn't even feel any resistance from the blade, and the long sword in his hand slashed through the goblin's neck.

[Goblin 0/

10] Although there are no torches, the text prompted by the system is extremely clear, and the total amount of this goblin is only 10 drops of blood, and the minimum damage dealt by the excellent iron sword in his hand is 10 points.

"Uh-huh!!"

The goblin let out a wail, staggered back several steps, and finally slowly lay on the ground.

[Congratulations to the host for successfully killing the G-class beginner monster Crypt Goblin, since the host is the first player to successfully kill the crypt creature, the SSS-level system lottery will be rewarded.] (Monster

level: G-F-E-D-C-B-A-S-SS-SSS, each level is divided into three levels: low, medium, and high).

Hearing the prompt of the system, Ye Fan was first overjoyed, and then began to wonder again, according to common sense, those who enter this dungeon should be able to come out in large numbers, and this goblin is not a vicious person, how could he be the first to kill?

But what he didn't know was that, based on the novice protection mechanism, the first ten dungeons would not allow players to encounter monsters, and the others did not have cheating pets like fennec foxes, and they were still pouting their butts digging dungeons!

Ye Fan didn't rush to open the system page, but first made a torch out of wood and flint.

【Torch

】【Tier:Initial】【Material:Wood*1Flint*1

】【

Utility: Can provide light and warmth for a short time.】

Ye Fan didn't skimp on his own materials, and made five torches in one go, lit one first, and then put the remaining four into the system storage space.

Ye Fan carefully explored the cave where he was, and after making sure that there were no other monsters, he actually unexpectedly found a treasure chest.

【Worn-out Wooden Treasure Chest

】【Requires Wooden Key*1】

"Key? Where am I going to give you the whole key...

Ye Fan scolded and kicked the wooden treasure chest hard, thinking that there would be nothing good in this kind of wooden treasure chest, Ye Fan didn't think it was a pity.

He then took out his system manual, and with a flash of golden light, his consciousness entered the system interface again.

"I'm going to use the SSS-level lottery that I just awarded!"

[Is the host confirmed?]

"OK!"

[Drawing... Please wait... [

Congratulations to the host for obtaining a perfect-level treasure, a mysterious energy core!]

! A perfection-level treasure?

This was the only thought in Ye Fan's heart at this time, originally he thought that this time he would only get drawings or materials and other items.

But who would have thought that this system would directly give him a perfect-level item!

Thinking of this, Ye Fan hurriedly opened his inventory...

[Power Core

] [Grade: Perfect] [

Can replace the player's system manual, giving the player a new technology tree and other functions. [

Note: This is the only one in the entire cave world]!

Ye Fan looked at the shiny square object in his hand and scratched his head with a little doubt.

"That's it? How fierce did I think it was?

Expectant, he scratched his head and pressed the use button.

[Congratulations to the player for successfully fusing the perfect-level energy core... The system is being upgraded. Ye

Fan only felt a tingling pain in his head, and that feeling sometimes wanted to stimulate his brain with radio waves, and sometimes it was like thousands of needles piercing his brain...

"Congratulations to the host for using the Energy Core..."

[Master... Are you there...

After Ye Fan was in a coma for a long time, when he opened his eyes again, a woman's voice suddenly came from his mind.

"What the hell?"

The system prompt of the dungeon before was the kind of male voice that was very married.,It's completely different from the Lolita voice in my mind now.。

[Congratulations to the master for successfully activating me, and I will serve you in the future!] Na

Lori said playfully, and Ye Fan also stood up.

"Then you can first introduce me to what kind of energy core is this, and what interesting skills are there."

[Insufficient permissions... The owner has only unlocked a new tech tree now, and the rest needs to be explored by the owner himself... When

Ye Fan heard this Lolita's words, his previous happy mood had completely disappeared.

He's also suffered the sin, and now tell him that he's unlocked a bullshit tech tree?

Ye Fan resisted the idea that he was going to turn his face, opened the new system interface, and called out the so-called new technology tree.

This time, there were two completely different lines in front of him, one was the technology tree of the basic technology he had before, and the other was extraordinarily sci-fi-looking.

"Laser sword? Gatling with blue fire?

Ye Fan just casually skimmed it and felt a throbbing in his heart, this brand-new technology tree contained all the products of some high-tech.

Co-authoring him to fuse this energy core is about the same as getting a lot of blueprints?

Ye Fanqiang held back the throbbing in his heart and closed the system interface.

While the new tech tree is very appealing, the most basic equipment to build is Iron.

Those things are not at all within his reach now, so he still has to move forward steadily with his feet on the ground.

"Open the World Channel!"

Ye Fan wanted to see how far the progress of the others was now.

[Player 59816: Is there anyone who came to save me!!] I'm being chased by a big lizard right now! Help me! All the loot is yours! [

Player 98721: Collect wastewater, bring the price, mmmmm

] [Player 77763: Build an iron sword on behalf of others, 50% probability of being excellent, private chat I DDDDD]

Ye Fan saw such a few pieces of news at a glance, it seems that his previous advantage over others has been caught up by those smart players.

But it doesn't matter, he now has the blessing of the energy core, and these people will have to work hard to catch up with him.

"Dog, it's almost time for us to continue!"

The transformation of the energy core has been carried out for about 8 hours, and Ye Fan can be regarded as forced to sleep for eight hours, and he can be regarded as full of energy at this time.

"Whew!"

The fennec fox let out a milky roar, and then rushed towards a wall with a fierce momentum.