Continuing on this discussion, I have charted out the basic unlocking conditions of each part as intuitively as I could think of at the time.
Thylakoid:
Evolve in a patch with Lux levels beyond 0%.
Nitrogenase:
Evolve in a patch with less than 5% ammonia.
Oxytoxisome:
Kill 5 cells
Be killed by a cell 3 times.
Flagellum:
Produce 10 more ATP than you consume.
Or reach a speed below 30.
Predatory Pilus:
Kill 5 cells.
Or be killed by a cell 3 times.
Mitochondrion, Chloroplast, Chemoplast, and Nitrogen-Fixing Plastid:
Revealed when nucleus is evolved.
Unlocked by spending 100 MP or engulfing a bacteria containing more metabolosomes than any other protein.
Can also be unlocked by engulfing the organelle dropped by other cells on death.
Toxin Vacuole:
Unlocked by possessing a nucleus and oxytoxisome.
Maybe this would be better unlocked through upgrades?
My hopes is that these conditions won’t be too difficult to reach as these are all relatively basic parts. Things such as upgrades may potentially have more niche requirements.
Parts that are not included in this list will be unlocked by default.
Please let me know if you have any disagreements or alternative ideas!