Developer diaries
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Plazas and Promenades
Airports
Sunset Harbor
Campus
Industries
Parklife
Green Cities
Mass Transit
Natural Disasters
Snowfall
After Dark
Base version
Plazas and Promenades Airports Sunset Harbor Campus Industries Parklife Green Cities Mass Transit Natural Disasters Snowfall After Dark Base version Developer diaries are articles, usually accompanied by screenshots and videos, showing the momentary state of development, describing features and explaining game design choices.
They are published more or less regularly by the developers Colossal Order in the game's main forum.
Plazas and Promenades[edit | edit source]
All developer diaries about the Plazas and Promenades expansion pack as well as patch 1.15, 1.15.X and 1.16.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 0 | Plazas and Promenades Announcement | "Plazas and Promenades" announcement. Plazas and Promenades introduces Pedestrian Zones, Specialized Districts and Service Buildings. | 2022-08-22 |
| 1 | Plazas and Promenades Dev Diary #1: Pedestrian Areas | Creating Pedestrian Areas, Service points, Pedestrian Streets, Bollards. | 2022-08-26 |
| 2 | Plazas and Promenades Dev Diary #2: Management and Progression | Service Points, Pedestrian Area Panel, Progression and Focus, Unique Buildings, Area Policies. | 2022-08-29 |
| 3 | Plazas and Promenades Dev Diary #3: New Plazas and Service Buildings | New Plazas, Props, Decals, and Service Buildings. | 2022-09-02 |
| 4 | Plazas and Promenades Dev Diary #4: New Specializations and Maps | Three Wall-to-wall specializations for residential, commercial, and office zones. Each features 48 new modern low-rise buildings. Five new maps. | 2022-09-07 |
| 5 | Plazas and Promenades Dev Diary #5: Free Content and Patch Notes | Quit After Saving, new roads, one-way metro tracks, patch notes for 1.15.0-f5. | 2022-09-13 |
| MCM | CCP: Mid-Century Modern by REV0 | "Mid-Century Modern" Content Creator Pack Dev Diary. REV0 describes the process of creating this pack. | 2022-09-03 |
| RV | Roads & Vehicles Dev Diary: Free Content & Patch Notes | "Roads & Vehicles" free content. Eight new buses for base game, 12 new trams for Snowfall, and 25 new roads tied to After Dark, Snowfall, and Plazas & Promenades expanding the options for roads with bicycle lanes, trams, and pedestrian streets. Patch notes for 1.15.1-f4. | 2022-11-09 |
| SKY | Content Creator Pack: Creator Dev Diary - Skyscrapers | "Skyscrapers" Content Creator Pack Dev Diary. Feindbold describes the process of creating this pack. | 2022-11-15 |
| HOK | Content Creator Pack: Creator Dev Diary - Heart of Korea | "Heart of Korea" Content Creator Pack Dev Diary. ELVIS describes the process of creating this pack. | 2022-11-21 |
| FD 1 | Financial Districts Dev Diary #1: Stock Exchange & Investments | The Stock Exchange, International Trade Building, Investments, Banks, Financial Offices specialization, new maps. | 2022-12-02 |
| FD 2 | Financial Districts Dev Diary #2: Free Update & Patch Notes | Color Corrections. New pets. Selecting submesh variation for ploppable buildings. Patch notes. | 2022-12-12 |
| MP2 | Content Creator Pack: Creator Dev Diary - Map Pack 2 | CCP: Map Pack 2. Sidai describes the process of creating this pack. Research, Planning, Production Process. | 2023-01-14 |
Airports[edit | edit source]
All developer diaries about the Airports expansion pack as well as patch 1.14 and 1.14.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 0 | Airports DLC | Airports DLC announcement. Experience the wonders and logistics of modern-day air travel. Coming 25 January 2022. | 2021-12-10 |
| 1 | Modular Airport Buildings | Design your own airport and grow it from a small local transit point to a massive international hub buzzing with life. | 2022-01-12 |
| 2 | Airport Progression & Public Transport Links | Start with a basic connection to the outside world with an aim to have your very own airline headquarters. | 2022-01-14 |
| 3 | City Airline | Welcome aboard this dev diary headed for the creation of your very own city airline. | 2022-01-17 |
| 4 | Cargo Airport & New Maps | "But what about all those packages and cargo deliveries", I hear you ask? | 2022-01-20 |
| 5 | Free Update & Patch Notes | Improvements to Plane AI, Replace trees on roads, Buy or sell soil, Service Vehicle Selection, Patch notes for 1.14.0-f4. | 2022-01-24 |
| 6 | How to build an airport | We explore step by step how to build an airport using the Cities: Skylines - Airports expansion! | 2022-01-25 |
Sunset Harbor[edit | edit source]
All developer diaries about the Sunset Harbor expansion as well as patches 1.13 and 1.13.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 0 | Sunset Harbor - Official Announcement Trailer | Announcement trailer and schedule for upcoming Dev Diaries. | 2020-03-19 |
| 1 | Sunset Harbor Dev Diary #1: Fishing Industry | Introduction, Fishing Industry production chain, Info View, Fishing Harbor and routes, Fish Farms, markets and factories, profit. | 2020-03-20 |
| 2A | Sunset Harbor Dev Diary #2A: Trolleybuses | Trolleybuses, depots, roads. Math. | 2020-03-21 |
| 2B | Sunset Harbor Dev Diary #2B: New Public Transport | Intercity Bus Service, Passenger Helicopter, Transport Hubs. | 2020-03-22 |
| 3 | Sunset Harbor Dev Diary #3: Waste and Water Improvements | Waste Transfer System, Waste processing chain differences, Waste Processing Complex, Waste Transfer Facility. Inland Water Treatment, Inland Water Treatment Plant, Eco Inland Water Treatment Plant, Advanced Inland Water Treatment Plant, Eco Advanced Inland Water Treatment Plant. | 2020-03-23 |
| 4 | Sunset Harbor Dev Diary #4: Maps, Policies and Unique Building | Five new maps. Six new policies. New Unique Building "Aviation Club". | 2020-03-24 |
| 5 | Sunset Harbor Dev Diary #5: Free Update | Overground Metro. New Healthcare City Services, Eldercare and Child Health Center. Improvements, Tutorial Message Log, start in a paused state, camera position can also now be saved when saving the game. Placing buildings on curved roads and slopes made simpler. Building pedestrian paths is easier. Walkable quays. | 2020-03-25 |
| TS | Content Creator Pack - Train Stations by Bad Peanut: Dev Diary | A bit about BadPeanut, what’s Included in the CCP, and the process of making this pack. | 2021-05-22 |
Campus[edit | edit source]
All developer diaries about the Campus expansion as well as patches 1.12 and 1.12.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 0 | Campus Dev Diary Introduction | The Campus expansion has three types of schools for higher learning, the Trade School, Liberal Arts College and University. It also includes varsity sports and museums. | 2019-05-09 |
| 1 | Campus Dev Diary #1: Campus Areas | Creating a Campus Area. Campus Types. Campus Area Info View. Campus Budget. Campus Areas and Your City. | 2019-05-10 |
| 2 | Campus Dev Diary #2: Campus Reputation | Increasing reputation. Bonuses from increasing campus reputation. Academic Works. Museums. Exchange Students. | 2019-05-13 |
| 3 | Campus Dev Diary #3: Academic Year, Events, and Faculties | Academic Year. Academic Year Report. School events. Unique Faculties. | 2019-05-14 |
| 4 | Campus Dev Diary #4: Varsity Sports | Varsity sports arenas. Varsity team customization. Varsity sports matches. Trophies. Varsity sports policies. Coaching staff and cheerleaders. | 2019-05-15 |
| 5 | Campus Dev Diary #5: Maps and Policies | Five new maps. New policies. | 2019-05-16 |
| 6 | Campus Dev Diary #6: Free Update | Libraries (service buildings and one Unique Building). Bus line customization. School Bus. Citizen employment details. Industry 4.0. Education system update. Fire behavior update. | 2019-05-17 |
Industries[edit | edit source]
All developer diaries about the Industries expansion as well as patches 1.11 and 1.11.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Industries Dev Diary #1 | Introduction to the Industries DLC. | 2018-10-11 |
| 2 | Industries Dev Diary #2: Industry Areas | Creating your Industry Area, Types of Industry Areas, Industry Area Info view and Industry Areas Overview, Benefit of having Industry Areas in your city. | 2018-10-12 |
| 3 | Industries Dev Diary #3: Supply chain part 1 | Extractor Buildings, Raw Material Storage Buildings, Processing Buildings, Unique Factories, Auxiliary Buildings. | 2018-10-15 |
| 4 | Industries Dev Diary #4: Supply chain part 2 | Industry Area Info Panel, Resource types, Unique Factories. | 2018-10-16 |
| 5 | Industries Dev Diary #5: Industry Area levelling | Main Buildings, Industry Area levelling, Leveling Requirements, Leveling with benefits. | 2018-10-17 |
| 6 | Industries Dev Diary #6: Maps and policies | Five new maps, 3 new City-wide Policies and 3 new Industry Policies, New models and props. | 2018-10-18 |
| 7 | Industries Dev Diary #7: Cargo | Cargo Services, Warehouses, Cargo Airport, Cargo Airport Hub, Post Office City Service, Post Office, Post Sorting Facility. | 2018-10-19 |
| 8 | Industries Dev Diary #8: Free Update | Toll Booths, Make Building Historical, Modding: Custom random names, Asset Editor. | 2018-10-22 |
| 9 | CO word of the week #4 - 48/2018: After Industries release! | Reddit AMA, release party, bug reports and fixing, feedback, Christmas songs, Chirper hat. | 2018-11-26 |
| 10 | Holiday Dev Diary Part 1 - Surprise Patch Included! | Patch 1.11.1-f2, new Christmas songs, Chirper hat, winter maps, "Winter Market" Unique Building. | 2018-12-13 |
| 11 | Holiday Dev Diary Part 2 - Show Me the Music! | Making three new Christmas songs to add to 2017's "Carols, Candles and Candy" free DLC. | 2018-12-14 |
Parklife[edit | edit source]
All developer diaries about the Parklife expansion as well as patches 1.10 and 1.10.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Parklife Dev Diary #1: Park Areas | Park Areas, types, leveling, gates, attractiveness, infoview and new panels. | 2018-04-26 |
| 2 | Parklife Dev Diary #2: Tours | Walking Tours, Bus Tours, Hot Air Balloon Tours, infoview and new panels. | 2018-05-02 |
| 2A | Parklife Dev Diary #2: Tours | Parklife winter map pictures from CO_EMMI. | 2018-05-04 |
| 3 | Parklife Dev Diary #3: New policies and buildings | Policies, Park Maintenance City Service, Unique Buildings, Monument and props. | 2018-05-09 |
| 4 | Parklife Dev Diary #4: Maps and tree noise reduction | New maps, terrain props, trees reduce noise pollution, and new animal models. | 2018-05-15 |
| 5 | Parklife Dev Diary #5: Modding and menu filtering | Sub-meshes, Scripting API, Asset Data API, Cinematic Camera API, Menu Filtering. | 2018-05-17 |
| 6 | Parklife Dev Diary #6: Introduction to Tourism | New Tourism Info View, New tourist and vehicle models, Mascots | 2018-05-22 |
| 7 | Word of the week 3 | Word of the week 3 - 27/2018 - Parklife patch, Summer Holiday | 2018-07-05 |
Green Cities[edit | edit source]
All developer diaries about Green Cities expansion as well as patches 1.9 and 1.9.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Word of the week 7 | Word of the week 7 - 26/2017 | 2017-06-27 |
| 2 | Word of the week 8 | Word of the week 8 - 27/2017 | 2017-07-07 |
| 3 | Word of the week 9 | Word of the week 9 - 33/2017 | 2017-08-14 |
| 4 | Word of the week 10 | Word of the week 10 - 35/2017 | 2017-08-28 |
| 5 | Green Cities - Dev Diary #1 | Green Cities diary 1 - Gamescom and the Key Features | 2017-08-31 |
| 6 | Green Cities - Dev Diary #2 | Green Cities diary 2 - The art of Green Cities | 2017-09-07 |
| 7 | Green Cities - Dev Diary #3 | Green Cities diary 3 - Gameplay and Policies | 2017-09-15 |
| 8 | Green Cities - Dev Diary #4 | Green Cities diary 4 - New City Services | 2017-09-21 |
| 9 | Green Cities - Dev Diary #5 | Green Cities diary 5 - Specializations | 2017-09-28 |
| 10 | Green Cities - Dev Diary #6 | Green Cities diary 6 - Free Update | 2017-10-05 |
| 11 | Concerts Update - Dev Diary #1 | Concerts Update diary 1 - Update to the Concerts miniexpansion (Patch 1.9) | 2017-10-11 |
| 12 | Green Cities - Dev Diary #7 | Green Cities diary 7 - New Maps and Scenarios | 2017-10-12 |
| 13 | Green Cities - Dev Diary #8 | Green Cities diary 8 - Road Modding | 2017-10-18 |
| 14 | Word of the week 11 | Word of the week 11 - 44/2017 - Budget Panel | 2017-11-02 |
| 15 | Word of the week 12 | Word of the week 12 - 46/2017 - Colossal Order: Relocated | 2017-11-15 |
| 16 | Word of the week 13 | Word of the week 13 - 48/2017 - Colossal Order: Office Sports | 2017-11-30 |
| 17 | Word of the week 14 | Word of the week 14 - 50/2017 - Christmas (Patch 1.9.1) | 2017-12-14 |
| 18 | Word of the week 1 | Word of the week 1 - 5/2018 - First mention of something new in the works | 2018-01-29 |
| 19 | Word of the week 2 | Word of the week 2 - 9/2018 - Game designer Karoliina Korppoo departs CO | 2018-03-02 |
| 20 | Dev Diary: ChirpX | Dev Diary: ChirpX | 2018-03-09 |
Mass Transit[edit | edit source]
All developer diaries about Mass Transit expansion as well as patches 1.7, 1.7.X and 1.8.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Word of the week #4 - 6/2017 | Working on some super cool stuff I’m not allowed to tell you guys just yet. Kyykkä. | 2017-02-10 |
| 2 | Word of the week 5 | CO word of the week #5 - 8/2017 (Teaser about "Mass Transit" news coming.) | 2017-02-24 |
| 3 | Word of the week 6 | CO word of the week #6 - 10/2017 ("Mass Transit" has been announced.) | 2017-03-09 |
| 4 | Mass Transit - Dev Diary 1 | Mass Transit - Dev Diary 1 - More Than Just New Public Transport Types | 2017-03-15 |
| 5 | Mass Transit - Dev Diary 2 | Mass Transit - Dev Diary 2 - Ferries | 2017-03-29 |
| 6 | Mass Transit - Dev Diary 3 | Mass Transit - Dev Diary 3 - Blimps & Cable Cars | 2017-04-12 |
| 7 | Mass Transit - Dev Diary 4 | Mass Transit - Dev Diary 4 - Monorails | 2017-04-26 |
| 8 | Mass Transit - Dev Diary 5 | Mass Transit - Dev Diary 5 - Hub Buildings and intersection settings | 2017-05-10 |
| 9 | Mass Transit - Dev Diary 6 | Mass Transit - Dev Diary 6 - Mass Transit in Action | 2017-05-17 |
Natural Disasters[edit | edit source]
All developer diaries about Natural Disasters expansion as well as patches 1.6 and 1.6.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Dev Diary 1: Meteors and Helicopters | The first disaster, meteors, and helicopters services. | 2016-09-15 |
| 2 | Word of the week #20 - 38/2016 | Mariina visited Barcelona and Responsive City Symposium organized by the Institute for Advanced Architecture of Catalonia. | 2016-09-23 |
| 3 | Dev Diary 2: Scenario editor | Description of the new scenario editor to be included in the next expansion. | 2016-09-28 |
| 4 | Word of the week #21 - 40/2016 | A list of the included disasters. Meteor, thunderstorm, sinkhole, tornado, earthquake, tsunami, forest fire / fire spreading. | 2016-10-07 |
| 5 | Dev Diary 3: Thunder and Lightning and Fire | Thunderstorms, lightning, fire spreading, forest fires, fire watch towers, helicopters. | 2016-10-12 |
| 6 | Word of the week #22 - 42/2016 | Press conference in London and licensed content with Stadiums: European Club Pack | 2016-10-20 |
| 7 | Dev Diary 4: Tornadoes and Shelters | Evacuation shelters to protect your citizens and some more flying cows. In-game trailer video. | 2016-10-26 |
| 8 | Dev Diary 5: Earthquakes, Sinkholes and Early Warning Systems | Space Radar, Weather Radar, Earthquake Sensors and Tsunami Buoys. Earthquakes and sinkholes deform terrain. | 2016-11-09 |
| 9 | Dev Diary 6: Tsunamis and Waiting for the Release | Tsunamis. Tank Reservoirs, Fresh Water Outlets, and the Pumping Service. | 2016-11-23 |
| 10 | Word of the week #23 - 48/2016 | Patch notes 1.6.0 | 2016-11-29 |
| 11 | Word of the week #24 - 51/2016 | "Colossal Disasters" video. CO going on holiday. | 2016-12-22 |
| 12 | Word of the week #1 - 2/2017 | CO back from the Christmas Holiday. | 2017-01-12 |
| 13 | Word of the week #2 - 4/2017 | Not overhauling traffic AI. Patch notes 1.6.3-f1. | 2017-01-26 |
| 14 | Word of the week #3 - 5/2017 | Quality Assurance. Plan for Colossal to expand starts with finding a new bigger office space. | 2017-02-03 |
Patch 1.5[edit | edit source]
All developer diaries about patch 1.5.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 5 | Word of the week 5 | Spring came to Finland. Reception for Landscaping update. Winners of the "Praise the Chirper Contest". | 2016-04-06 |
| 6 | Word of the week 6 | Water Normal issue. Patching frequency/mods/QA. | 2016-04-12 |
| 7 | Word of the week 7 | Patch notes 1.4.1 | 2016-04-19 |
| 8 | Word of the week 8 | Word of the week 8 | 2016-04-26 |
| 9 | Word of the week 9 | Word of the week 9 | 2016-05-03 |
| 10 | Word of the week 10 | Word of the week 10 | 2016-05-24 |
| 11 | Word of the week 11 | Word of the week 11 | 2016-06-02 |
| 12 | Word of the week 12 | Patch notes 1.5.0-f4. "Match Day" free DLC announced. | 2016-06-08 |
| 13 | Word of the week 13 | Word of the week 13 | 2016-06-16 |
| 14 | Word of the week 14 | Word of the week 14 | 2016-06-23 |
| 15 | Word of the week 15 | Word of the week 15 | 2016-06-30 |
| 16 | Word of the week 16 | Word of the week 16 | 2016-07-08 |
| 17 | Word of the week 17 | Word of the week 17 | 2016-08-11 |
| 18 | Word of the week 18 | Word of the week 18 | 2016-08-25 |
| 19 | Word of the week 19 | Word of the week 19 | 2016-09-08 |
Patch 1.4[edit | edit source]
All developer diaries about patches 1.4 and 1.4.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Word of the week 1 | Word of the week 1 | 2016-03-01 |
| 2 | Word of the week 2 | Word of the week 2 | 2016-03-08 |
| 3 | Word of the week 3 | Word of the week 3 | 2016-03-15 |
| 4 | Word of the week 4 | Patch notes 1.4 | 2016-03-22 |
Snowfall[edit | edit source]
All developer diaries about Snowfall expansion and patches 1.3 and 1.3.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Prepare for Snowfall | Announcement | 2016-01-20 |
| 2 | New Things on the Roads | Snow ploughs and Trams | 2016-01-27 |
| 3 | Snow and Heating | New Policies and dynamic electricity use | 2016-02-03 |
| 4 | New and Free | Free content, new public transport UI and weather effects | 2016-02-11 |
| 5 | Theme Editor | A new tool for modders and content creators | 2016-02-16 |
After Dark[edit | edit source]
All developer diaries about After Dark expansion as well as patches 1.2 and 1.2.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Night Time, what is it? | Day and night cycle | 2015-08-20 |
| 2 | What's new with Modding? | Changes related to Modding | 2015-08-27 |
| 3 | Expanded city services | Police and transport | 2015-09-03 |
| 4 | Commercial specializations | Commercial specializations | 2015-09-10 |
Base game[edit | edit source]
All developer diaries about Cities: Skylines (base game) as well as patches 1.0, 1.1 and 1.1.X.
| No. | Title and Link | Description | Date |
|---|---|---|---|
| 1 | Roads | How roads function | 2014-09-24 |
| 2 | Zoning | Basics of zoning and zoning tools | 2014-10-07 |
| 3 | Natural Resources | Types of resources and how to access them | 2014-10-21 |
| 4 | Public Transport | Modes of public transport and how they work | 2014-11-04 |
| 5 | Outside Connections | Tourism and Import/Export | 2014-11-18 |
| 6 | Map Editor | Tools and functions of the Map Editor | 2014-12-09 |
| 7 | Simulation | Simulation of individual Citizens and Vehicles in the game | 2015-01-07 |
| 8 | Districts and policies | Districts and policies | 2015-01-20 |
| 9 | Info Views | Info views | 2015-02-03 |
| 10 | Themes | Themes | 2015-02-17 |
