Tree of life in Thrive

How will life be categorized in Thrive, something like tree of life? (or will that feature be in the game at all)? (this applies to other stages. as game progresses it would get more complicated)

Categorizing life by Eukaryotes and Prokaryotes

Than Eukaryotes by Plants, Fungi, Animals, Protists and any other kingdom that may arose.

That’s where it gets complicated.

These Kingdoms have dozens of different categories.

Just in Kingdom Animalia, first things that divides animals is, do they have tissues or not.
Than symmetry, and than dozens of different groups.

Will this exist in Thrive?

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So I did a little work on this a while ago. I managed to make a reasonable procedural clade diagram.

As one piece of information we will have is the exact decent of every species in the game, we will know the whole tree of life perfectly (unlike biologists who have to try and figure it out).

As for classifying different areas some divisions are easy, like prokaryotes vs eukaryotes and single vs multicellular. However inside these we may split things up in a more arbitrary way. Though I guess when you can see the whole tree of life maybe you don’t need named groups of things, not sure.

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Well, will there be divisions that describe certain characteristics of a creature.

(this image explains it the best)

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Here is a simple example I made

(this is a just quick drawing i made in paint.net that explains the idea)
(there could be further sub-divisions within group A or B, depending on creatures within them)

It’s a bit tricky because how to do you pick which features to divide by? Like if you say “all cells with chloroplasts are in one group” or something then you might find that chloroplasts evolved twice in totally different parts of the tree.

For example on earth flight has evolved 4 different times independently because it is such a good idea (insects, pterosaurs, birds, bats). So if we made a rule that “all things that fly are in the same group” then it would be a pretty weird group, though might make sense I guess.

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Not in the sense of “all things that fly are in the same group”.

For example insects, reptiles, birds and mammals.

Insects are part of arthropods. Arthropods, reptiles, birds and mammals had a common ancestor once (which was mostly likely a worm). They share some common things such as, being eukariyotic, multicellular, having nervs etc.

But they aren’t in the same group because they have a lot more of different things about them, even though each of these animal groups developed flight at some point.

So you wouldn’t group them on the basis of flight, but on basis of things such; does it have exoskeleton or not?; what type of blood circulation?, what type of nervus system?

How could you add it in-game?

For example,
You have a worm-like creature. It splits in to two groups. One with an exoskeleton and one without it.
That worm-like creature with the exoskeleton gives rise to the “insects” while ones without it, go on the completely different path.

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I don’t think you get how procedural generation works.

The creatures in Thrive won’t be categorised by Earth categories, because they won’t evolve by Earth categories.

On Earth, there is a category of creatures called Arthropoda, that descend from a shared ancestor who had an exoskeleton. But who’s to say that another creature will evolve like that on your planet in Thrive?

In Thrive, creatures will be categorised based on how they evolved on their planets. Categorising them based on the clades that evolved on Earth would make no sense, because they would have evolved along their own unique lines, and should be categorised based on their own unique clades.

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I just put Arthropoda as an example. It doesn’t have to be named like that in Thrive, or even exist. (depending on the evolution)

(Better Example)


From LUCA three groups evolved. Still looking alike because their split wasn’t long ago.

First representative of group A is A1
Like LUCA before it ihas a flexible membrane and it’s an Heterotroph, but unlike LUCA it developed means to move itself. Along the evolution from A1 to A2, a sepreat branch appeared (A3), which had two hexes of cytoplasm but it has lost means to move it self.

First representative of group B is B1
Un-like LUCA before it idoesn’t have a flexible membrane, but it is an Heterotroph. Along the evolution from B1 to B3, a sepreat branch appeared (B2), which had developed means to move itself.

First representative of group C is C1
Like LUCA before it has a flexible membrane, but it is an Autotroph. Branches of Group C have developed means to move them selfs.

Through process of endosymbiosis and separate branch of eukariyotes evolved.

Something like this would be a nice addition in the report menu in Thrive. Something like a tree of life/evolution.

Sorry I misunderstood what you were saying. I guess one way to go about this is to not have the game make distinctions at all, but to just make a diagram showing who evolved from what.

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I think that too. It would make it easier for devs to implement and easier for us to understand.

But I still think game should make some basic groups such as animals, fungi, plants and protists. Or even simpler between prokaryotes and eukariyotes

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I think a good distinction would be energy sources/diet (predation, decomposition, iron respiration, photosynthesis, etc) and motility (ability to move). There are plenty of other easily-defined categories that organisms could be classified and sorted upon, like size, mental complexity, or presence of certain structures (vertebrae and amount of limbs are common due to their near-immutability).
These earthly kingdom lines are less clear at a cellular level - dinoflagellates are motile plants with eyespots that sense and move to light. A major theme of Thrive is the fluidity of distinctions/seamless transitions.

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