That's a great question! The base game should have enough randomness within bounds based on historical and projected data for playthroughs to vary, but there are still going to be certain choices that will tend to be more successful in the harsh desert environment than others. That's part of the learning experience from a serious game (including for me). If I have time, I'll add some additional options that will provide more variability, like various rainwater harvesting options - maybe even a greenhouse or aqua/hydroponics, but I'm not likely to have time for those things before the end of the jam.