The increase in supplies and combat personnel showed that the Star-Level Shelter's production capacity for all kinds of resources was still steadily rising.
Not only could it cover consumption, but there was even a slight surplus.
At the same time, more and more fighters were completing their training and joining active-duty units.
More and more newly recruited members were also becoming reservists.
This was a good thing for the Star-Level Shelter.
What Li Chen was curious about now, however, was just how terrifying a Particle Energy Cannon with an output power level of 999 would be.
A single level was equivalent to the explosive power of a one-billion-ton-yield Mushroom Bomb.
At level 999, that would be 999 billion tons.
Although the power of a Mushroom Bomb did not increase exponentially along with its yield.
The relationship between the two was not proportional.
But with such a terrifying yield, the effects produced by the explosion would still be devastating.
Li Chen was certain that even the Star Destroyer Motherships currently attacking Earth did not possess weapon systems of that level.
He just did not know whether the three hundred most advanced Star Destroyer Motherships that had recently arrived.
Had such firepower configurations...
The thought that even stronger enemies were heading toward Earth.
And that the Star-Level Shelter might one day have to face the Prite Civilization directly.
Instantly wiped away Li Chen's earlier delight.
At that moment, he only felt an immense weight pressing down on his shoulders.
Pulling himself out of his thoughts.
Li Chen turned his gaze to the final attribute on the Star-Level Shelter's Attribute Panel.
It was a newly unlocked function that had appeared after the recent upgrade.
Air Internal Circulation.
This function could ensure that, without establishing air circulation with the outside world, the Star-Level Shelter