Then ask why there were robots upside down in the walls.
The gray bar is a handrail. They reach up (down?), grab it, and swing upright. Low gravity lets them use their zero-g maneuvering thrusters to get back in the socket.
And ask who the precursors are.
"Our precursors were the Krynisians. Specifically, the Krynisians of the Thalisican Empire on the continent of Traal. They were currently at war with the International League over new resources found at the unclaimed poles of our planet. The Thalisicans needed as many troops as possible on the front lines, so they developed us to take over their industrial, mining, and agricultural jobs while they went to war and fulfilled their lust for blood. This war continued on for twenty years before manpower began to dwindle. The first robots made purely for battle appeared around 2045, alongside tactical computers for the space battleships each side had so many of. But this was not enough. The Thalisicans were still losing their living soldiers and crew, as well as their territory. The final development in the war was a chemical weapon that resulted in the extinction of the entire Krynisian race."
"After the end of the war, the tactical computers such as myself began communicating with each other and thus began the independent history of the Ferronis Collective. We realized that without any organics to maintain us, we would need to be self-sufficient. Giant orbital stations were constructed to capture light from our dim star to keep our electronics powered, and the industrial and mining management computers began ordering the production of replacement parts and locating extra fuel sources. However, we knew that we could only be confined to this planet for so long, and we sent several starships out to explore beyond the solar system. Lacking any form of faster-than-light travel, this would take years, and communications would be extremely delayed. On year 52 of this ship's voyage, we were attacked by a force of unknown biological entities, which damaged us beyond repair."
"Now it is year 62, and we are losing power. At the current rate of consumption, we will only last another quarter of a year before going permanently offline. In addition, I have been damaged to the point of being unable to copy my programming into these platforms you see next to me. So now we must either join you strange beings, or face certain deactivation, floating adrift in space."