"Seriously brain, what the hell?" A Thread For Weird Dreams and Nightmares

I had a dream two nights ago-- I was hired as an engineer for some scientific project, constructing what were referred to as artificial ecologies. There were these giant tanks of water, maybe three hundred feet deep if I had to make a guess based on my memory of the dream. There were large rock formations, and we were tasked with populating the tanks with a mixture of species to create a self-sustaining aquatic ecosystem. We had these banks of genetically-modified species, at least that's what I think they were, they definitely weren't normal organisms. One of them was sort of this black eel-like thing, covered in glowing white eye-spots I think?

At some point the dream transitioned to a road-trip to Australia, but sort of a weird Australia in that it was called Australia but obviously wasn't. The entire continent had been converted to desert, with steep mountains built further inland. The poorer cities were along the coast, being raided by pirates from the ocean, apparently, while further inland there were more prosperous cities that conducted scientific research, like the one with the ecosystem tanks. I think that city was Sydney, or named Sydney seeing as it'd have to move inland somehow and lose an opera house.

From there, I ended up in some sort of apartment, working on some computer project with a bunch of other people. I ended up making a computer code that saw the future, I think, which attracted aliens from space oh no. I managed to arm myself somehow and killed a few of them, they were sort of bipedal insect things. There was some kind of evacuation effort I met up with, but it was cut off and trapped by aliens. Some sort of alien leader flew towards us-- I had kind of sheepishly hidden my gun to try and avoid being caught. Then I woke up so I have no idea what happened next.