Wasted Saturn Lord

Chen Zhou traveled to a post-war wasteland planet and became the only survivor of the 7th Pioneer Regiment. In his previous life, he was the chief engineer of the Federation, and in this life he is a third-level technician. One hundred and twenty people in the regiment disappeared out of thin air, the base was destroyed, and the energy station had three days of fuel left. A system called "Technology Tree" was activated in his mind. Alloy proportioning, energy management, bioengineering - all the knowledge from previous lives returns. But every time he opened a node, he forgot something. Comrades from previous lives, faces of relatives, own names. Until the system makes a sound for the first time. He recognized that voice. The adjutant Bai Que died in his arms in his previous life. Bai Qiao's voice spoke in his head, and he didn't know if he should save him or shut him down with his own hands. On the third underground floor of the base, something is awakening. The extra piece of biological data - the gene matches 99.7% Of humans - Standing outside the base, he knocked on the door.