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Stellaris Dev Diary #157 - Things That Rock

Hi everyone!

I’m Eladrin, Game Designer on Stellaris, and I’m one of the newer members of the Stellaris team. I joined the team during the development of Ancient Relics, and it’s been a blast. It was awesome meeting so many of you at PDXCON, and getting to hear so many ideas and excellent stories directly from you.

Back in Diary 152 and Dev Diary 153, Grekulf mentioned some of the Summer Experimentation that we did - but in today’s dev diary I wanted to talk about one of the things I worked on during the summer - game mechanics for the Lithoids.


The Lithoids Species Pack is very sedimental to me. When I wanted to dig deeper into the systems and get my hands dirty in the code, I looked at the “wouldn’t it be cool if…” list, and saw “...Lithoids ate minerals instead of food?” up near the top. This seemed like a solid foundation to start with, and a gneiss stepping stone to get my feet on the ground that fit my apatite - it seemed like a pretty simple change after all.

Okay, I’ll stop with the rock puns.

There are fifteen Lithoid portraits (and one new machine portrait), some of which have appearances that resemble some of the other phenotypes so you can do some interesting things with Syncretic Evolution.

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Look at me! I'm a sparkly space unicorn!

The ships use a beautiful asymmetrical crystal design. Remember that the colors of your ships reflect your flag. You can use this to your advantage to make a pretty sweet looking fleet.

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This is my favorite Titan in the game.

There’s also a Lithoid Advisor Voice. I may have stopped with the puns for now, but there’s no force in the universe that can stop the Lithoid Advisor.

Changing the Lithoids to consume minerals was simple enough, but we also wanted to embrace the sci-fi trope of slow growing rock beings living in inhospitable climates. We started by giving them a massive boost to habitability which they still retain today, and a much larger pop growth penalty than they eventually ended up with. For flavor they receive a bonus to Army Health, and we increased their leader lifespans (but have their leaders start somewhat older as well).

Every little change leads to several more, however. If a species eats minerals instead of food, their homeworld should start with extra mining districts and no agricultural districts built. In fact, if a species evolved to eat rocks, their homeworld should probably by mineral rich and food poor. But wait, what about if they’re a Syncretic Evolution species, or if a Rogue Servitor wants to start with pet rocks? What about if they want to be a Devouring Swarm?

Many minor changes came along with what started as a simple economic change. Just a few examples include the Lithoids being tragically unable to be declared the most delicious species in the galaxy if there are any alternatives, loosening restrictions a bit on Bio-Reactors, modifying the Fleeting trait to be -25 years for Lithoids instead of -10, and a handful of Tradition changes. We also added a few Lithoid specific traits that allow them to generate small amounts of special resources every month.

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After many rounds of qualitative feedback and a huge number of playdays, we ended up with the following as the Lithoid species trait:

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The large habitability boost that Lithoids receive allow them to colonize worlds that would be marginal for other species, allowing them to work around their slower pop growth speed. Empires with a Lithoid primary species also begin with Lithoid Monolith blockers on their homeworld that can be removed at a large mineral cost for an additional Lithoid pop. (A Lithoid specific Origin in Federations modifies these a bit, and… we’ll talk more about that in another Dev Diary.)

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So very sleepy.

The Lithoid trait is automatically applied to any species that uses a Lithoid portrait. For the Xenophiles out there, Half-Lithoids generated by Xeno-Compatibility follow this rule as well, so if the portrait is a Lithoid it will consume minerals instead of food, produce minerals when purged, and so on.

We’ve exposed this ability so modders should be able to similarly add phenotype forced traits to species they create by adding trait = "trait_lithoid" to the species class entry. (Replacing the Lithoid trait with their own custom species trait, of course.) I look forward to seeing what you do with it.

As for the Lithoid Devouring Swarm… They don’t have precisely the same motivations as a regular Devouring Swarm. While they will still press organics inhabiting the worlds they take into nutritive paste for the Bio-Reactors, their hunger is a bit more ambitious. Renamed Terravores, they operate largely the same way as a regular Devouring Swarm, but once off their homeworld they have an additional planetary decision to consume the habitable worlds of the galaxy, leaving devastated husks in their wake:

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Are you going to eat that?

Terravores are barred from Terraforming (and thus do not have access to Hive Worlds) and cannot clear the devastation they leave behind, but other empires can clean up after them, though it takes a major effort.

Modders will now be able to change the name and description of a civic out for another based on species class, similar to how traditions can be swapped.

civic_hive_devouring_swarm = {

>snip existing stuff<

swap_type = {
name = civic_hive_devouring_swarm_lithoid
description = "civic_tooltip_devouring_swarm_lithoid_effects"​

trigger = {
local_human_species_class = LITHOID​
}​
}​
}

I’m quite pleased with how the Lithoids turned out, I think they're a real gem. I hope that you all enjoy it just as much.

In a few hours the free 2.5.0 patch will be up and the Lithoids Species Pack will be available for shale, so pick it up, rock out, and leave the galaxy gravelling at your feet!

#################################################################
######################### VERSION 2.5.0 ############################
#################################################################

###################
# Balance
###################
* The Pop Growth Reduction for Bio-Trophies now actually reduces their growth rate. Driven Assimilators now apply their organic growth penalty as a multiplier the same way as Rogue Servitors do, and is now also 50%
* Defensive Platforms placed on Outposts now provide 2 points of Piracy Suppression for their system. The Great Game tradition from the Supremacy tree now also reduces the cost to build Defensive Platforms by 33%


###################
# UI
###################
* Shift+clicking on ship count in the Fleet Manager now adds ships up to the nearest unit of ten, using ctrl fills up to the template max size (for realzies this time)
* The Shared Burdens civic will no longer appear by itself in the civics list when you select Gestalt Consciousness ethics but have not yet selected Machine Intelligence or Hive Minded authority
* Added a notification when one empire guarantees the independence of another

###################
# AI
###################
* Automated building now checks that upkeep cost is covered by income

###################
# Bugfixes
###################
* Fixed wrong save file being loaded from the resume button in the launcher, caused by a conflict between local and cloud saves
* Fixed the game complaining about mods not being in UTF8-BOM3 for no good reason
* Fixed a potential crash in AI when evaluating market values
* Fixed cases where planetary events could fire multiple notifications
* Odd Factories no longer sometimes block pops from getting purged, because you monsters should be free to purge whatever you want
* Mod load order is now the same as the order in which the mods are displayed

Known Issue: Lithoids are currently affected like other biological pops when there is a food deficit, instead of being upset by mineral deficits. They’re very empathetic.
 
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Adding mechanics to the different types of species is an awesome idea. I hope plants and fungoidd will get some too.

Only thing I'll probably hate are the puns. The trailer war great because you don't have to listen to that over and over again. But I will probably have to pick a regular advisor after the 50th time I have to hear a we will rock you declaration of war.
 
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I'm Lithoid and I eat rocks. Not meat or plants, but rocks! So why should I suddenly eat xeno pops? Sorry @Eladrin but for me is stupid idea. Lithoid Devouring Swarm he should either instantly kill the former owners of the conquered planet to start eating conquered planet as soon as possible, or make their rapid eviction into interstellar space. Why my Lithoids have eat meat or plants, when they are have hungry rocks?
 
So why should I suddenly eat xeno pops? Sorry @Eladrin but for me is stupid idea.
They literally explained it in the dev diary. Bioreactors; apparently lithoids have access to those too.
 
Wait... Does this pic means that they will be able to devour AND restore that region back again?
No. It was said - IN THE DEV DIARY - that the Terravores cannot restore the world, only other empires can.
 
* Mods are now properly added to the load order in the order they are enabled rather than the order they are sorted in the launcher
Is it too early to request a rollback? If you have more than a handful of mods and you want to change the middle load order it makes it awkward. When looking at the launcher how do you read the current load order?
 
HERE is a question I have: What happens if a Terravore builds a planet's districts to the cap, and then Consumes it? Is one of the districts poofed away at random or what?
 
HERE is a question I have: What happens if a Terravore builds a planet's districts to the cap, and then Consumes it? Is one of the districts poofed away at random or what?
I think the Idea is that the Terravores don’t really care, they just consume and move on leaving an uninhabitable... well I was about to say rock, but it would be wood and biological life residue as they’d take the rock.

But since I’m not personally a Terravore, valid question.
 
I think the Idea is that the Terravores don’t really care, they just consume and move on leaving an uninhabitable... well I was about to say rock, but it would be wood and biological life residue as they’d take the rock.

But since I’m not personally a Terravore, valid question.
Yeah, I get the Terravores wouldn't care, but what happens mechanically?

I remember when 2.2 came out, there was that bug with Gaia-terraforming where the Gaia would end up with fewer max districts than it had before, causing ALL existing districts to poof away, causing widespread overcrowding and unemployment.
 
Any chance for Lithoid Fanatic Purifiers or Terravores to get relations bonuses for other Lithoid empires, kind of like how Determined Exterminators can get along well with other robot empires?
DE's don't kill other robots. Terravores eats entire worlds, and Lithoid FPs kill other Lithoids... Can't really see them getting along very well...
 
What happens if a lithoid hive mind takes over an organic hive mind's hive world though? They can't make their own but that would be a way to give them some anyways. Any special things for that edge case?
 
What happens if a lithoid hive mind takes over an organic hive mind's hive world though? They can't make their own but that would be a way to give them some anyways. Any special things for that edge case?
That would work. Terravores just can't make their own since they can't terraform.
 
Is it too early to request a rollback? If you have more than a handful of mods and you want to change the middle load order it makes it awkward. When looking at the launcher how do you read the current load order?
This is a big concern of mine as well. The Launcher already feels funky with mod loading, and does this now mean to have mods load earlier, we need to disable all mods that we want loaded after, then re-enable them?
 
Is it too early to request a rollback? If you have more than a handful of mods and you want to change the middle load order it makes it awkward. When looking at the launcher how do you read the current load order?

Seriously, sorting by enabled order....and not even showing it in the launcher....is completely insane.

I've managed games with around 200 mods....am I supposed to mentally remember the order I enabled all of them? or go through and enable them in the proper order when i get one I need to insert somewhere in the stack?
 
What happens if a lithoid hive mind takes over an organic hive mind's hive world though? They can't make their own but that would be a way to give them some anyways. Any special things for that edge case?
I'd imagine theoretically this would be similar to any gestalt at all getting their appendages on an ecumenopolis or a synth empire landing on a Machine World. These guys respectively can't make their own, but they could benefit greatly from having them nonetheless. They just have to steal them from someone else who can make them.