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Base game

All developer diaries about Europa Universalis IV (base game).

Europa Universalis IV
No. Title and Link Description Date
0 Our Vision Design goals 2012-08-31
1 The world is at your feet Map of the world: interface consideration for province shapes, projection, colors, terrain, seasons, etc. 2012-09-07
2 The purge & all cards on the table Purging outdated systems and new design ideas 2012-09-14
3 Your envoys are awaiting your orders! Envoys: diplomats, missionaries, merchants and colonists 2012-09-21
4 Your Economy is about to change Income, expenses, stability, no "minting" (as in EUIII), Loans 2012-09-28
N/A The 3 tiers... Discussion of the different tiers of countries, and a listing of which countries fall into each tier; the tier of the country determines the amount of developer focus on national events, features and mechanics. 2012-10-03
5 The Return of the Kings Rulers, monarchs and power, heirs, advisors 2012-10-04
6 Do you have any idea about it? Idea groups, national ideas, and ideas interface 2012-10-12
7 And did those feet in ancient time.... England and dynamic historical events: War of the Roses and English Civil War, War of Captain Jenkin's Ear and The Muscovy Trade Company; plus national ideas, missions and decisions 2012-10-19
8 With God on Your Side? Religion: unique abilities for Catholic, Orthodox, Sunni & Shia, religious unity now visible, and new religion interface 2012-10-26
9 It's a rich man's world... Trade system: trade nodes, merchants, trade power, trade mission, supply and demand, trade efficiency, trade range, trade steering, trade income, and mercantilism 2012-11-02
10 It all belongs to Mother Russia... Russia: strategic possibilities, dynamic historical events (Time of Troubles, Grand Embassy for westernization), missions and decisions, national ideas; army tradition and navy tradition changes 2012-11-09
11 The Cost & Reward for Technology Technology investment and cost, administrative, diplomatic and military technologies defined. Plus a related video developer diary. 2012-11-16
12 Dominium Maris Baltici Sweden: strategic possibilities, dynamic historical events (The Dacke Feud and French Wars of Religion), missions, decisions, national ideas; plus stability changes from EUIII 2012-11-23
13 FREEEDOM! Rebels, their causes and mitigation: stability, government types, war exhaustion, and overextension 2012-11-30
14 Nobody expects the... Spain: strategic possibilities, events, missions, decisions, and national ideas; plus details on cultural conversion. 2012-12-07
15 Et tu Brute? Milan: strategic possibilities, dynamic historical events (Ambrosian Republic, national ideas, and republican tradition as an analogous mechanism for legitimacy for monarchies 2012-12-14
16 Vive la France! France: strategic possibilities, national missions, decisions and ideas; also brief notes on harsh treatment to curtail revolts and army morale recovery. 2013-01-11
17 Honey, don't you want to talk about it? Diplomacy: new diplomatic interface, opinions and rivals 2013-01-18
18 Sail away with me! Portugal: events, missions, decisions, ideas, and a detail on colonization 2013-01-25
18 Part II - Colonisation Clarification Colonization 2013-01-26
19 War has never been so much fun... Shattering armies, disorganization, combat interface, combat width, flanking, supply limits, attrition, manpower, reinforcement changes, maintenance cost increases. Plus a video: the World Map Trailer. 2013-02-08
20 A Tale of Two Cities The republics of Venice, Genoa, and a link to a video interview of Thomas "Besuchov" Johansson, project lead at Europa Universalis IV. 2013-02-15
21 Leaders & Mercenaries Land units, naval units, leaders, mercenaries; plus a link to an article at Strategy Informer: Paradox Hands-On Special: Master Class 2013-03-01
22 A.E.I.O.U Austria: strategic possibilities, dynamic historical events (The Italian Wars, Privilegium Maius), missions, decisions and national ideas; plus Holy Roman Empire improvements (diplomacy, reforms, elections and wars within the empire) 2013-03-08
23 Tell me sweet little lies... Coalitions, relations (improve relations and insults, overextension and coring provinces. 2013-03-15
24 Heir of Rome Ottoman Empire: strategic possibilities, events (including a series of events for the provincial system and the Janissaries), national ideas; plus a feature on Westernization 2013-03-22
25 Anna Karenina Wargoals, peace options, peace interface; plus April Fool's: "EUIV, The Musical!" (songs to download and a video) 2013-04-05
26 A smoke and a pancake? A look at Burgundy and the Low Countries 2013-04-11
27 An offer you can't refuse Spy ideas and diplomatic covert actions: fabricate claim, infiltrate administration, sow discontent, sabotage reputation, support rebels, and changes to rebels. 2013-04-18
28 A Kinderegg! Three in one! Scotland, The Hansa, and the Reformation 2013-04-26
29 For the Horde! Province interface and the Hordes of Central Asia: Steppe Nomad government type, separate technology group, automatic casus belli against neighbors, 50% damage modifier for fighting on plains and grasslands terrain and, aside from the Timurids, a set of national ideas; video link to the call to arms 2013-05-03
30 Four more countries and even more... The Mamelukes, Persia, Timurids, Oman; video link to the call to arms. 2013-05-10
31 A Point of Honor Japan: Daimyos and the Shogunate, unification, events, ideas; plus a discussion of the new scoring system. Plus links to the call to arms and to download the songs of the EUIV musical. 2013-05-17
32 The more the merrier! Multiplayer changes, including new networking code, hotjoining, matchmaking, standalone servers, improved chat, and AI takeover (of players who drop out). There is also a video link to the "EUIV musical" "Casus Belli". 2013-05-24
33 Go East! Ming China: The Mandate of Heaven, faction system, national events and ideas; plus debts and loans. Link to the Casus Belli music video. 2013-05-31
34 Unit interfaces and more Changes to unitview, and the need for military power (MP) for special actions. Also a note on forced march and Berber culture national ideas. 2013-06-07
35 Alt for Norge! Denmark, Norway, and a brief look at sieges 2013-06-14
36 Hot States in the Holy Roman Empire Quick look at the start positions and national ideas of Brandenburg, Bavaria, and Bohemia. 2013-06-20
37 Aragon, Naples and Korea National ideas for Aragon, Naples and Korea 2013-06-28
38 Ayutthaya, Viyanagar & Muslim Sultanates A look at the national ideas major powers in the Indian subcontinent: Ayutthaya, Viyanagar and the Indian Sultanates. 2013-07-05
39 Divine Tactics Fleet basing rights, enforce peace, and Christian Theocracies 2013-07-12
40 What is our mission? Missions, decisions, achievements and Ironman mode. Plus links to the initial videos of an England game play-through by Quill18. 2013-07-19
41 What we all waited for! National ideas of central Europe: Poland, Lithuania, Hungary 2013-07-26
42 The Crusader Kings II Converter Article and video developer diary of how the Europa Universalis 4 Save Converter DLC will work. Saved games will be brought in as a mod. 2013-07-31
43 Artificially Improved Changes to the Artificial Intelligence (AI), detailing how it makes decisions based on its attitudes for alliances and coalitions, and how it handles its armies in wartime. There is also a brief look at how AI difficulty and handicapping can be set. 2013-08-01
44 Newbie Friendly Describes changes to the ledger, hints system, production interface, tutorial 2013-08-01
45 A very small development diary Demo will be released by the end of the week (10 August 2013); the game will be released on 13 August 2013 at 9 AM Eastern Standard Time (3 PM Swedish time). 2013-08-05


Developer video diaries and developer's let's play sessions on the various expansions.

No. Title and Link Description Date
1 Developer Walkthrough Thomas Johansson, project lead for Europa Universalis IV shows off this new game from Paradox Interactive. 2012-11-09
2 Technology changes shown off. 2013-02-13
3 Religion delved into in detail 2013-07-01
4 Exploration developer diary from Thomas Johansson about how to colonize as an option for more nimble powers. 2013-07-15
5 Warfare Project Lead Thomas Johansson describes the nuances of war strategy. A Guide to Conquering Nations the Old-fashioned Way. 2013-07-25
6 Converter Tool Highlights How the Crusader Kings II-to-EUIV converter DLC will work. Saved games will be brought in as a mod. 2013-07-31
7 Conquest of Paradise Livestream Highlights Project Lead Thomas sits down with Matt to discus the first expansion for Europa Universalis IV. 2013-11-08
8 Conquest of Paradise - Native Americans Studio Manager Johan Andersson speaks about the new features in the upcoming expansion, Conquest of Paradise. This DD focuses on the expanded gameplay and mechanics for the Native American tribes, including new nations, unique buildings, and nomadic peoples 2013-12-12
9 The History of Historical Strategy Highlighting the studio's humble beginnings with its adaptation of Europa Universalis from the tabletop to the desktop, this short film goes on to examine the team responsible for such titles as the Hearts of Iron and Crusader Kings series. Games both old and new are shared from the designers' perspective, including a look at what's next for Paradox Development Studio -- their first RPG, Runemaster. 2014-04-30
10 Europa Universalis IV: Wealth of Nations Video Developer Diary #1 Project Lead Thomas Johansson talk about the features of the upcoming Europa Universalis IV-expansion "Wealth of Nations", which focuses on trade and how to make the wealth of the world flow into your coffers. 2014-05-16
11 Paradox Live 0010 - The Art of War Europa Universalis IV, The Art of War is coming, lets sit down with Martin and talk about it. 2014-09-13
12 The Art of War - Feature Highlights We sat down with Wiz to talk about the upcoming expansion for Europa Universalis IV, The Art of War. 2014-09-23
13 Europa Universalis IV: Art of War Video Developer Diary Martin "Wiz" Anward, Project Lead for Europa Universalis IV, explains some of the new tools available to players as they march to war. Learn about new diplomatic options, the new powers of rebels and other notable changes. 2014-10-10
14 The Art of War - Features 2 Highlights There's smoke on the horizon, war is brewing. So here's the highlights for the Art of War to get you up to speed on the mechanics in this expansion. 2014-10-20
15 The Art of War - Feature 3 Highlights We needed to do a third feature presentation for the Art of War to cover the final bits that we needed to cover. 2014-10-29
16 Paradox Live 0017 - A reply to Arumba Earlier this week, Arumba posted a video about how to improve Europa Universalis IV in twelve minor ways. The video can be found here: https://www.youtube.com/watch?v=xAHCRTSGdLw 2014-11-27
17 Paradox Live 0018 - EUIV Patch 1.9 and free features We're working on the 1.9 patch for EUIV, this patch includes both bug fixes and a content update. 2014-12-04
18 El Dorado - Feature Spotlight Project Lead Martin Anward describes the new mechanics for Central and South American native states, including three new religions that promise to challenge even the most experienced desktop monarchs. Anward also goes into great detail on the Nation Designer and alternate starting maps that will be available for the first time in Europa Universalis IV: El Dorado. 2015-02-24
19 Common Sense - Feature Spotlight In this video, Project Lead Martin Anward gives us his insights of the expansion. 2015-06-04
20 Cossacks - Feature Spotlight Paradox Walks You Through Major Improvements 2015-11-24
21 Mare Nostrum #1 - Map Changes & Trade Leagues DDRJake and BjörnB cover some of the new content in Mare Nostrum 2016-03-08
22 Mare Nostrum #2 - New Ideas & Timeline DDRJake and BjörnB cover some of the new content in Mare Nostrum 2016-03-15
23 Mare Nostrum #3 - Condottieri DDRJake covers some of the new content in Mare Nostrum 2016-03-22
24 Mare Nostrum - Feature Spotlight Johan Andersson goes over the features in the coming EU4 expansion, Mare Nostrum 2016-03-23
25 Mare Nostrum #4 - Kuba Luba DDRJake and BjörnB play-test Mare Nostrum as Luba in the new regions added to Africa 2016-03-29
26 Mare Nostrum #5 - Countdown to Launch DDRJake play-tests some of the new content in Mare Nostrum just before release 2016-04-05
27 Rights of Man #1 - Reveal Stream Johan Andersson and cKnoor reveal the next expansion for EU4 at GamesCom 2016-08-19
28 Rights of Man #2 - Institutions, Tech & more Johan Andersson and DDRJake on the overhauled technology system in EU4 2016-08-31
29 Rights of Man #3 - Queens, Regencies & more DDRJake expands on queens and reworked regency system 2016-09-07
30 Rights of Man #4 - Great Powers, Subjects & more DDRJake explains advantages of being a great power and improvements to subjects 2016-09-14
31 Rights of Man #5 - Leader traits, Copts & more Johan Andersson and DDRJake on military traits and unique co-op like mechanics for Coptic religion 2016-09-21
32 Rights of Man - Feature Spotlight Johan Andersson goes over the features in the coming EU4 expansion, Rights of Man 2016-10-07
33 Mandate of Heaven #1 - Empire of China, Tributaries & Manchu Banners DDRJake goes over the China region and the new mechanics added there 2017-03-14
34 Mandate of Heaven #2 - Ages DDRJake and Johan Andersson and the separation of time in EU4 1.20 2017-03-21
35 Mandate of Heaven #3 - Diplomatic Macro-Builder DDRJake on the Quality of life improvement that is the Diplomatic Macro-Builder 2017-03-24
36 Mandate of Heaven #4 - Japan DDRJake goes over the mechanic changes done in the Japanese region 2017-03-28
37 Mandate of Heaven - Feature Spotlight Jake Leiper goes over the features in the coming EU4 expansion, Mandate of Heaven 2017-03-30
38 Third Rome - Feature Stream Jake demonstrates the features in the upcoming EU4 immersion pack, Third Rome 2017-05-30
39 Cradle of Civilization - Feature Spotlight Jake Leiper details the features in the upcoming Cradle of Civilization expansion and the 1.23 Persia update 2017-10-24
40 Rule Britannia - First Look Jake Leiper with a first look at EU4's Rule Britannia immersion pack and the 1.25 England update 2018-02-06
41 Rule Britannia - What's New? Jake Leiper with more details on the upcoming features of Rule Britannia and the 1.25 England patch 2018-02-27
42 PDXCon 2018 - Past, Present, and Future of EU4 Jake Leiper-Ritchie, Game Director of EU4, talks about the Past, the Present, and the Future of EU4. 2018-05-20
43 Dharma - Feature Spotlight Jake Leiper goes over the new features and changes coming in the Dharma expansion and the 1.26 Mughals update 2018-09-04
44 Golden Century - First Look Jake and Rodrigue with a short look at the new Golden Century immersion pack 2018-11-21
45 Manchu 1.29 - What's New? DDRJake and neondt go over all the details in the free 1.29 Manchu update 2019-09-17
46 Universalis 20th Anniversary - The Documentary ..... 2020-10-22