In the Seven Day World, there is a weapon star-upgrading system. However, many players believe that it's unnecessary to upgrade weapons, as there are numerous types of weapons in the game, and they are frequently replaced. Is it really as everyone says? Is it necessary to upgrade weapons in the Seven Day World? To help everyone understand whether it's necessary to upgrade weapons, the following will introduce the importance of upgrading.

Upgrading weapons in the Seven Day World is very necessary. After upgrading, the strength of the weapon will significantly increase. For example, at the beginning of the game, we only have a basic pistol. After upgrading it, not only will the magazine capacity expand, but the firing rate and attack power will also be improved to varying degrees. Additionally, I recommend that you definitely upgrade your commonly used weapons. As for the specific operations of upgrading, I'll give a brief introduction.

Weapon Star-Upgrading Operations in the Seven Day World:
1. First, collect the enhancement materials and blueprint fragments needed for upgrading. Materials are relatively easy to obtain, but blueprint fragments are hard to come by.
2. After collecting all the materials and blueprint fragments, open the weapon blueprint page from the main interface of the game. Find the weapon you want to upgrade on this page, and once you've decided, start the operation directly.

3. In the weapon star-upgrading interface, you can see that the left side displays the materials and blueprint fragments you currently have. If you have enough materials, just click the enhance button at the bottom right. Once the weapon has been enhanced a certain number of times, the blueprint weapon will successfully be upgraded.
4. After completing the upgrade, you can check the weapon's basic attributes. You will find that not only do the basic attributes significantly improve, but even the critical hit rate and weak point damage attributes will also increase by percentage points. The effects of skills will become more advantageous. For instance, after upgrading the Predator weapon, it gains a special ability where the chance of triggering an anomaly specialization increases by 5.5%.

After reading this introduction about the important role of weapon upgrades, when we consider the question of whether it's necessary to upgrade weapons in the Seven Day World, do we find that there is a significant difference between upgraded and non-upgraded weapons in essence? This difference becomes even more apparent during combat.