Death Star Farming, a Drop of Water at the Beginning Becomes a God

I was exiled to the Death Star GM-7-13 for breaking the "Morning Star" environmental modification system, a legendary cursed place where even microorganisms cannot survive. After being so hungry that he chewed radioactive ore raw, he finally awakened to the transformation system. The initial mission had me carving coordinates into a rock, which I thought was a hallucination. Then the interface pops up: The coordinate point has been detected and you are being granted permission to modify the Death Star. The assignment required me to plant tiny crystalline moss. And I was lying next to the ore, hungry and thirsty, and a line of words appeared on the sand: [Novice mission reward: Micro-condensation water purifier] As the storm swept over the Death Star, the system carved the final message on the rock face: [You will become the only god on this planet]