If I will ever introduce alien civilization, they will not resemble that you expect to see from popular shows or games. This might be an intelligent community of bacteria, or quantum supercomputer distributed inside the icy crust of a cold planetoid, or mushroom forests with self-organizing patterns, or obviously engineered planetary system with no signs of aliens or their technology, or needle-shaped asteroid flying through interstellar space at 0,2c. Some species or biosphere activity may not even be considered as "intelligent" from our point of view.
That's insane to contemplate. If intelligent life truly takes on such a vast variety and diversity, then if we ever do become a type 2-3 civilization able to explore the stars; I can't help but wonder how would we even go about classifying, categorizing, and sub categorizing, and in some cases even recognizing at all, all the different forms intelligence life, and Extra-Terran life in general, might take on. As vast as the universe is and as many different types of life may exist, we will most likely not only need A.I. and von neuman probes to explore a reasonable portion of even just local interstellar space, but will also need to use that A.I. to categorize and handle all the information that is gathered with entire systems devoted to the handling of information regarding discovered life. We may need to even teach it to create entirely new categories for the occasions that it runs into life of the type we have no way of imagining or predicting, something entirely out of our experience or reference, it scares me to think that a much larger portion of life we find will fit that category than we are comfortable thinking. Afterall look at how much bizarre stuff we found on our own planet that we share the same tree of evolution with, each ecosystem we find will be it's own tree of life, some lifeforms may be built from stuff entirely different from DNA, which leads to a whole new frontier in categorization thinking about how many forms genetic code might take on, even those very building blocks of life may take on forms far outside our ability to predict.
Now trying to simulate that diversity and variety with procedural algorithms, even in the most general simplified way one can...I do not envy you, however It would be a break through in procedural generation technology and you would essentially establish yourself as a coding god, (though lol now that I think about it you've already more than done that 100 times over)