Developer diaries

  • We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.

Release! | Hearts of Iron IV: By Blood Alone


Now Live!

Patch Notes Here!

The future of war hangs in the balance. Take to the skies and pen the annals of history in the latest expansion for Hearts of Iron IV - By Blood Alone

Buy it here!...​

Stellaris Dev Diary #268 - Toxoids are Among Us, What's Next? (Plus a Transcript!)

Hello scavengers!

This week marks the launch of the Toxoids Species Pack in all its poisonous goodness, with many quests undertaken, debris fields scavenged, planets relentlessly industrialized, and an uncountable number of leaders dead from old age at the ripe old age of childbirth. We hope...

Victoria 3 - Dev Diary #59 - AI

16_9.jpg

Hello and welcome to the 59th Victoria 3 development diary! With the release of the game just a little more than a month away (which honestly feels surreal), one of the last remaining things for us to do alongside bug fixing is to put the final polishing touches on the AI for...

Europa Universalis IV - Development Diary 20th of September 2022 - Post Release & Norse Easter Egg

Hello everyone!

It's been a week since we released EUIV: Lions of the North and 1.34 'Sweden' update, and I'll start by saying that the entire team involved in it wants to thank the community for their great support. The feedback we have received so far has been very positive and we greatly...

Dev Diary #108: Dev Diary Scheduling & Community Activities

Greetings!

It’s been (almost) two weeks since the release of Friends & Foes, and the sheer amount of reactions and feedback to it and the accompanying Bastion Update has been fantastic to see! From the many emergent stories that have been posted around the Internet (one about a peasant crush...

Developer Diary | Art & Achievements

Hello, and welcome to this week's Dev Diary!
I am HOI’s 2D artist and am the one who makes the little buttons, icons, and whatever gets thrown in my way for you to look at and push on, and today I have gotten the opportunity to talk about my work!
So let’s start at the beginning, how does a...​

CDG Challenge !


BG_AM_GENERAL.png

CDG Community Challenge!
Hello to all,
To celebrate the 15th anniversary of Airlines Manager, we want to challenge you, and are launching a community challenge!


Bring passengers to Paris CDG for a tour of the Playrion...

Alliances Planning

220915_INFO_AlliancesV0.png



Alliances pro announcement

(Version française ci-dessous)


Hello to all,
As announced in our first communication, we come back to you this Monday, September 19th to indicate to you a more detailed planning of the merge between the old...

Pro alliances are coming very soon!

220915_INFO_AlliancesV0.png


Alliances pro announcement

(Version française ci-dessous)

Hello to all,

The alliances on the Tycoon server have been present for a few months now, and we have used this time to take care, as promised, of the migration from the...

Stellaris Dev Diary #267 - 3.5 'Fornax' Patch Notes, AI, Performance, and Modding

1663142090636.png

Hello everyone!

The Stellaris 3.5 'Fornax' update is releasing next Tuesday on September 20th, alongside the Toxoids Species Pack. We coaxed @PDX-Loke out of the Mutagenic Spas to provide these preliminary patch notes for you. Sorry that they're still a little...

Victoria 3 - Dev Diary #58 - Interest Revisions

16_9.jpg

Hello and welcome to yet another Victoria 3 development diary. Today is going to be a fairly brief dev diary discussing some design changes in diplomacy that happened as a result of internal playtesting and feedback, specifically to the mechanics of Interests and their...

Plazas & Promenades Dev Diary #5: Free Content & Patch Notes

Hello again city-builders! Plazas and Promenades is almost here, and I’m so excited that you will soon be able to enjoy it. As with every major expansion, we have a little something for all players who own the base game, and today’s Dev Diary is all about the free content!

Let’s start with a...

Developer Diary | Tech

Bonjour friends, it’s your favourite Tech Lead again!
Last year already I wrote to you in the final weeks leading to the release of the Barbarossa patch, and we draw close to the go-live of the Avalanche patch, here I appear again.

Old Platforms Retirement Plan

Like the...​

Stellaris Dev Diary #266 - Rise a Knight!

Greetings squires!

Mr. Cosmogone here, on behalf of the Lord Commander Eladrin who gave me his blessing to tell you more about the mysterious Knights of the Toxic God.

image6.png

“Pledge thy Life to Realm and Quest”

The Origin is content oriented, but it does come...

Development Diary #107: 1.7.0 "Bastion" Update Notes

Heya everyone!
This is your friendly neighborhood Tech Lead Zack. Someone made the rather unwise decision to allow me to write this dev diary for the "Bastion" update ( I think everyone else was sick ) and I intend to milk it as much as I can. "Bastion" goes live later today with Friends & Foes...

Stellaris Dev Diary #265 - The Art of Toxoid Clothing

Hey all! My name is Alec Beals, one of the several concept artists who worked on the Toxoids Species Pack. Today I’ll be taking you on a very fashionable walk through the seriously expanded clothing component of this pack. In a later dev diary we will go into more detail examining the design...

Plazas & Promenades Dev Diary #4: New Specializations & Maps

Greetings city-builders, and welcome to the fourth Dev Diary covering Plazas and Promenades. Today’s dev diary is all about the new district specializations and new maps, so let’s check them out.

First up we have the three new Wall-to-wall specializations that can be used for residential...

Europa Universalis IV - 6th of September 2022 - 1.34 'Sweden' Changelog

Greetings!

It's been a while since the last Dev Diary, but for a good reason: We're finally one week away from Europa Universalis IV: Lions of the North release!

Today we're sharing with you the changelog of the new version, 1.34, nicknamed 'Sweden' for good, not overpowered at all...

DD #106: A Fistful Of Friends & Foes

Hello everyone!

Nice to meet all of you! A little background on me: I am Noodle, a Game Designer on CK3. I’ve been on this project since before the release of the game, but for most of its life I’ve been some delicious flavour of QA. Anyway, enough about me, I know you’re all here for more on...

Stellaris Dev Diary #264 - Damn the Consequences

‘Sup, trash bangers?

Today we’ll be taking a look at some of the features coming in the Toxoids Species Pack. As we’re on an accelerated dev diary schedule, there’s no time to lose! Let’s jump straight into this and turn it over to @Gruntsatwork .

Overtuned​


One of our two...

Plazas & Promenades Dev Diary #3: New Plazas & Service Buildings

Alright mayors, it’s time for another Dev Diary as we count down to the release of Plazas and Promenades. Today is all about the new plazas & high capacity service buildings coming in this expansion, so let’s get to it.

Plazas and Promenades adds 10 new plazas, which can be found in the...

Stellaris Dev Diary #263 - Announcing Toxoids

Hello everyone!

Today we’re announcing our next Species Pack that will be released alongside the 3.5 “Fornax” update, the Toxoids!

Whether you burn the future for the benefit of today or scavenge the past, Toxoids are survivors. Toxoids gives you the chance to gamble the future of your planets...

Victoria 3 - Dev Diary #57 - The Journey So Far

16_9.jpg
Hello all! Now that we know the Victoria 3 release date and have seen a bit of actual, live gameplay, I thought it would be a good idea to recap what the game is and tell you a bit about how we got here. Today I'm going to focus less on abstract principles and...

Developer Diary | Modding

Greetings all,

Today we have quite a number of items for the dev diary. We’ll be covering some new additions to the career profile system, followed by some new tools coming for modders in the Avalanche update.

To begin with, I’ll hand over to our designer on the career profile:



Hello...​

Development Diary #105: 1.7 "Bastion" Update

Hello and welcome to another Development Diary for Crusader Kings 3. Today I will talk a bit about the free 1.7 “Bastion” update and what new things it will bring to the game. Today we will not be talking about [REDACTED] which will be released together with the update.

The changes to Factions and AI...