Chen Fei wasn't interested in interacting with the remnants of this planet's civilization, didn't care about ruins or any underground cities. If there were truly something worth noting, this planet wouldn't be in such a mess. Clearly, it was excessively ravaged back then.
The first contact between two civilizations often begins with war. Even if there are survivors from this planet's civilization, at most they're just two or three kittens and might not withstand a barrage of guns from the exploration team.
Adam: Combat Mech losses amount to 143 units, various vehicle losses to 14, and damage to engineering equipment to 3 sets.
Every four hours, AI would report to Chen Fei a cumulative loss update on the operations outside the Protective Barrier.
The native flora and fauna are more adapted to the geology and climate here, so the "Skylight" project's work couldn't stop for a moment; all human workers had already timely retreated to safety zones.