Chen Xin was extremely excited about picking up the system.

It's like a bear child suddenly gets a new toy, and he won't stop until he has a good time.

And now that he was hiding in the vault, all the electronics were wrapped in tin foil and put in an iron box to avoid the next EMP shockwave, and he really didn't have much else to do except toss his newly acquired system.

However, Chen Xin's toss made him figure out how the system he picked up worked, and what capabilities it could have.

The system itself is rudimentary, not so much a complete system as a helper.

There is no interface to the whole program, and when Chen Xin swapped out of the system, all that was displayed was the balance of survival points in the corner of his retina, as well as the relevant upgrade information of the items that Chen Xin could touch.

For example, when Chen Xin stopped his eyes on a ballpoint pen on the table, he could see that two different upgrade schemes appeared on this ballpoint pen.

One is to add a strong light flashlight function, upgrading the ballpoint pen to a pen-shaped flashlight commonly used by doctors in the hospital; The other is to add a broken window function to turn it into a survival tool.

The first kind of Chen Xin has often seen in various medical dramas, the kind of pen that can be turned into a strong flashlight with a single click is indeed very convenient, and doctors can use it to check the body of patients anytime and anywhere, which is a very practical tool.

As for the second type, in fact, as a wilderness survival enthusiast, Chen Xinxin has one such pen in his hand.

Made of all titanium alloy, the texture is hard and can be used as a tent nail or even a crowbar, using a bolt structure, which is much stronger than the button pen in terms of reliability and convenience of use, and the pen head is designed to be a broken window cone, in the event of a car accident and other things, it can be used to smash the car window to escape, it is a very practical and convenient pen.

Chen Xin also likes it, and used to take it with him often, so that when he was inspired, he could take it out and record his inspiration.

It's just that a titanium alloy pen is certainly not cheap, and Chen Xin spent more than 400 yuan when he bought this pen at that time.

If it weren't for Chen Xin's income as an online writer, his manuscript fee would be OK, and he might not be so generous to buy such an expensive pen.

But now, it doesn't need to cost more than 400 fast, just a two-dollar ballpoint pen, plus 5 survival points, Chen Xin can get the same titanium alloy tactical pen.

Of course, although Chen Xin had the idea of trying it out to see what was going on with the system upgrade, because he didn't have any survival points at hand, he could only look at the upgrade plans of various items given by the system to satisfy his hunger.

The system's survival point settlement method is settled at 12 o'clock at midnight every day, and Chen Xin must settle in a 24-hour cycle, which means that Chen Xin must stay in the apocalyptic environment for 24 hours to get a day's survival point.

However, as a novice benefit and as the first start-up capital, although Chen Xin did not survive for 24 hours today, he could still get a day's survival points.

It's just that this kind of benefit is only available when the system is activated, if Chen Xin is out of the doomsday crisis environment determined by the system, the system function will be temporarily frozen, and the system will not be activated again until he returns to the doomsday environment determined by the system again, but the reactivated system must wait for Chen Xin to survive for 24 hours before it will start to settle survival points.

As for how Chen Xin left the current environment where the world is in apocalypse, this is not something that can be answered by this system that does not have a talking artificial intelligence-assisted system.

Because there was no survival point, Chen Xin didn't bother to think about how many points it would cost to upgrade the items, but went through all the things in his shelter, wanting to see what the system could upgrade, and what upgrade plans these things were.

Chen Xin needs to make a plan for his future survival plan according to these upgrade plans, and at least draw up a list of limited upgrades, so that he knows what he should upgrade first.

Everything that appears in Chen Xin's sight can be upgraded with survival points in the system judgment, ordinary pens can be upgraded to tactical pens, ordinary scissors can be upgraded to first-aid folding scissors, and strong flashlights can be upgraded to infrared and laser multi-functional tactical flashlights......

Even the self-heating food stored by Chen Xin can be upgraded, or upgraded to a subsistence food with a bit of science fiction.

However, in this toss, Chen Xin also discovered that the system cannot conjure matter out of thin air, but it can transform the existing substance into another substance.

For example, the plastic ballpoint pen that can be upgraded to a titanium tactical pen changes the material of the pen from plastic to titanium.

And all this is achieved on the premise of consuming survival points, and if you have survival points, you can have everything.

Of course, in addition to simply consuming survival points, the upgrade of the system also has the way of upgrading materials, which can reduce the consumption of some survival points, but the consumption of materials is larger.

For example, Chen Xin's ballpoint pen, if Chen Xinxin has 50g titanium alloy in his hand, he only needs 1 survival point to complete the upgrade, and if it is 200g iron, he needs 3 survival points.

As for other things, they are basically similar upgrade rules, if Chen Xin can provide enough materials and materials, the survival points consumed by upgrading items will be much less, and how much less depends on the materials that Chen Xin can provide.

Chen Xin is very satisfied with this function of the system, which provides him with two survival route options.

One is naturally to be a Shilipo sword god, who constantly saves survival points in the shelter, and upgrades items when he has enough until the shelter is built solid and indestructible.

As for the other way, it is natural to wait for the external environment to stabilize, actively go out to collect materials, use the materials to upgrade the shelter, and finally make the shelter impregnable and indestructible.

The two ways of upgrading are not good or bad, they only represent two different development routes, and no one stipulates that Chen Xin must choose one and give up the other.

He could have stayed at home for a while, so that the shelter could be upgraded to a certain level, and then he would go to the outside world to collect materials and accelerate the upgrade of the shelter after he had enough guarantees for his survival.

On the one hand, it will take some time for the external environment to stabilize, and on the other hand, the external environment will become full of danger and uncertainty with the arrival of the apocalypse.

After all, with the occurrence of meteorite impacts, the vast majority of countries in the world will not be able to maintain their original order, and the original social order and peaceful environment will be wiped out.