This civilization is very strong, but the technology tree is a bit crooked

As the UP master of the manual area, Chen Yi suddenly found that the items he made had an attribute interface, and the attributes of the item could be adjusted.

Since then, the painting style of human technology has changed.

A model drone that soars into the sky and splits in space.

Hand-soldered, intelligent mechanical dog with nuclear power and battery life.

Beyond battery life, the ghost drone that never falls.

Independent wisdom, intelligent life that likes to gossip and be arrogant.

Made of strong interaction materials, three-body water droplets with a diameter of less than 1 cm.

There are also curvature ships that fly faster than light, but only with kinetic weapons.

...

One day, alien civilizations visited human beings, and after some observations, they came to a conclusion.

This civilization is very strong, but the technology tree is a bit crooked...