- 1.0.0600 Tourism Update - 22 July 2026
Hello dear leaders of Ratopia!!Thank you for your patience while waiting for this update.This update introduces Tourism content, allowing visitors from foreign city-states to travel to your city,as well as Artifact content that grants permanent benefits to your city through exploration.There may still be mistranslations or bugs that we have not yet discovered.If you report them through Steam or Discord, we will address them as quickly as possible through hotfixes. Patch Lists Notice: Those with this icon(💌) are inspired by the players’ opinions. Thank you so much again.🏖️Three new buildings related to Tourism and Artifacts have been added. ▶ 👑Royal BuildingsPassenger TerminalA building required for tourists from other city-states to visit your city.To attract tourists, you must assign Guide Boards at the Passenger Terminal to establish a tour route.The number of visiting tourists dep…
- Ratopia DevDiary #38 - Tourism System - 25 June 2026
Hello all, it's Cassel, developer of .It has been a while since our last development diary.Over the past few updates, we have mainly focused on relatively small-scale changes, so there were not many topics that felt substantial enough to cover in detail through a development diary.This time, however, we are preparing a slightly larger update, and we thought it would be a good opportunity to share some of our current development progress and the process behind it.In this development diary, we would like to briefly introduce how we came to plan the tourism content for the next update, as well as give you an overview of what the tourism system currently looks like in development.Preparing the UpdateWe have been preparing this update little by little since January to make sure the schedule does not slip too far behind.Our goal for this update was to prepare content comparable in scale to DL…
- 1.0.0530 Update - 19 January 2026
Hello dear leaders of Ratopia!! Thank you sincerely for your patience while waiting for this update. Originally, we hoped to deliver a wide range of quality-of-life improvements. However, within a limited timeframe, we spent a great deal of time discussing which features would provide the greatest satisfaction to players if updated first. On top of that, overlapping schedules made it more challenging than expected to clearly distinguish which features could realistically be implemented within the given period. As a result, we were not able to develop as many additions as we had initially hoped. That said, each change included in this update was carefully selected after considerable thought, and we hope you will find some value in the overall quality of these improvements. If this update did not fully meet your expectations, we sincerely apologize, and we will strive to prepare the next…
- 1.0.0520 Update - 23 September 2025
Hello dear leaders of Ratopia!! The hot summer has already passed, and the cool autumn is approaching. This time, we have prepared the minor update announced in our previous notice. Although we were unable to add many features due to time constraints, we hope these small yet satisfying changes will bring you joy! In addition, we are currently holding a broad survey on to hear what kind of updates you would like to see in the future. We would greatly appreciate your participation if you have the time. Notice: Those with this icon(💌) are inspired by the players’ opinions. Thank you so much again. Patch List ▶💌 New Language Support Italian - Thanks to the help of PolyZen from our Discord channel, Italian is now supported. Once again, thank you very much! ▶Added 2 New Structures and 8 New Decorations Purgon Order Structure: Purging Stele - The Purging Stele is a defensive structure that s…
- Future Update Notice - 27 August 2025
Hello dear leaders of Ratopia!!We would like to express our sincere gratitude to everyone who continues to love Ratopia, even in the sweltering summer heat. Recently, we have seen questions in the community such as, “Will there be no more updates?” Before anything else, we sincerely apologize for not being able to ease such concerns in advance. Through this notice, we would like to share the current development status to relieve your worries, and also inform you about our upcoming update plans while receiving your feedback more openly. First of all, the nearest update is scheduled for the end of September. September Update PreviewThe update we have been preparing over the past two months will include the following elements: - New Purgon defensive structure - Purging Stele - New Royal structures - Phonograph - New Decorations such as pillars - New starting Leader Characters - Calm Strate…
- 1.0.0510 Update - 1 July 2025
Hello dear leaders of Ratopia!! In this patch, we've added the long-requested male Leader appearance and improved the functionality of the Porter Station. In fact, we also tried developing several additional features, such as a function to pre-warn the locations of enemy invasion tunnels, enhanced modding convenience for character appearance changes, and even a system allowing the Leader to ride animals… Though we went through numerous trials and errors, unfortunately, due to feature conflicts and technical limitations, these features could not be included. Although we can't implement every idea, we carefully review all of your feedback and use it as a valuable guide to steer Ratopia in a better direction. Thank you for your continued support and love for our humble game. If you have more great ideas that haven’t been implemented yet, please feel free to share them through the Steam Com…
- Ratopia Reaches 200,000 Players! - 23 June 2025
Hello dear leaders of !! Today, we’re here to share the exciting news that over 200,000 players have joined us in , along with a preview of the upcoming updates. We sincerely thank you for your generous feedback and warm support throughout your journey of building a magnificent city. Now, let us briefly introduce what we have planned for future development. Porter Station feature overhaul Male Leader Quality of life improvements New Structures Additional dungeons Invasion system improvements Balance adjustments Bug fixes Since launch, we’ve improved electricity production, adjusted the difficulty of religion, added the Relocate feature, and fixed various bugs. While the patch direction after release was initially broad in scope, we’re gradually refining it with more specific plans. There is still a good possibility that elements not on the list above will be added as well, and we plan t…
- 1.0.0502 Hot Fix - 27 May 2025
※This patch note includes the changes made over the past two weeks.※ Patch List Notice: Those with this icon(💌) are inspired by the players’ opinions. Thank you so much again. - 💌 The Moving speed bonus from the Dexterity stat has been adjusted. - Moving speed per 1 Dexterity: +2% → +3% - 💌 The "Air pocket" effect has been added as a job effect for the Water Tank. - 💌 The Research UI now allows searching for Structures even if they are not yet unlocked. - 💌 Fixed an issue where Snails would not produce slime when overlapping with Structures. Bug Fix - 💌 Fixed an issue where the Milestone "Path of Burial" and the Leader Perk "Pickpocket" could be used together. - 💌 Fixed an issue where resource and service subsidy policies granted additional subsidies daily. - 💌 Fixed an issue where guide text appeared as “…” in some languages. - 💌 Fixed missing Moving speed bonus information fo…
- 1.0.0501 Hot Fix - 9 May 2025
※This patch note includes the changes made over the past week.※ Patch List Notice: Those with this icon(💌) are inspired by the players’ opinions. Thank you so much again. -💌 The product amount of electricity-related structures in the Science theme has been generally increased. - Ratpower Generator: 15 → 18 - Wind Turbine: 8 → 10 - Hydroelectric Generator: 1 → 1.5 - Solar Pannel: 12 → 15 - Thermal generator - Required Workload has been increased from 600 → 800 for all types. - Charcoal - Required Resource: 3 → 2 - Product amount: 120 → 200 - Coal - Product amount: 180 → 300 - Flamone - Product amount: 150 → 250 -💌 Effects related to Faith Duration in the Shaman theme have been generally increased. - Idol of Sloth: 3 → 4 - Idol of Gluttony: 3 → 4 - Idol of Joy: 3 → 4 - Idol of Cleanliness: 3 → 4 - Chapel: 8 → 9 - Dream Catcher: 30 → 36 - Relic: 30 → 36 - The probability of disease prog…
- Colony sim Ratopia is basically Rimworld with rats, and it just hit 1.0 - 1 May 2025
Rimworld with rats. It's a simple concept, yet a tremendously appealing one. Cute colony sim Ratopia has just left early access after 18 months, and developer Cassel Games has a special Steam sale to celebrate. Boasting an impressive 88% user rating, its adorable art style and clean UI gives its detailed social simulation and intricate systems an immediately eye-catching look, and 1.0 brings a whole swarm of upgrades to the table. Read the rest of the story... RELATED LINKS: Punishing ARPG No Rest for the Wicked bounces back with brutal Breach update The best indie games on PC 2025 Clair Obscur Expedition 33 director recommends another new RPG you should try
- Ratopia Official Release! - 1 May 2025
End of Early Access Hello dear leaders of !! Hello dear leaders of !! This is Cassel, the developer of . As of today, has officially launched after three years of development and one and a half years in Early Access. First, I would like to sincerely thank the team members who have worked diligently and persistently over the years, and everyone who has continuously shown their interest and support. Development for began in November 2020, and it was released in Early Access on November 1, 2023. Since then, we have improved the content and user experience based on valuable feedback and suggestions from many users. Below are the key elements that were added or changed during the Early Access period: -Scientist-themed structures and electricity system -Shaman-themed structures and religion system -Equipment Reforging system -City Milestone system -Leader Perk system -Disease system -Loot dro…
- Ratopia DevDiary #37 - Release preparation and Retrospective - 1 April 2025
Hello all, it's Cassel, developer of . As with last month, we’re continuing development with a focus on convenience and polishing. With the graduation from Early Access approaching, the scale of features we can add is limited, and some new features require thorough testing, which creates a lot of time pressure and stress. We’re especially concerned that if bugs occur in new features, we might not be able to provide the best experience at the moment when the most players are engaging. There are many features we’d like to add, but with limited manpower and time, some team members have instead dedicated their efforts to planning and preparing promotional strategies for the official release. In this diary, we’d like to briefly share the promotional plans we’re preparing ahead of the full launch, and also take some time to reflect on the development work we’ve done over approximately 1.5 yea…
- Ratopia Official Launch Trailer Released - 27 March 2025
Hello, Ratizens! After 1 year and 6 months in Early Access, Ratopia is finally wrapping up its early phase and will officially launch on May 1st at 11:00 AM (UTC+9). We’re planning a 20% launch discount, and the price will increase slightly after the discount period ends. To celebrate the full release, we’ve created a brand-new trailer—check it out below! The official release will bring a wide range of improvements. These include not only quality-of-life upgrades such as UI improvements, additional resolution support, and new hotkeys, but also gameplay content updates like the Leader Perk system and enhanced start settings. We’re also adding a new intro video, fresh BGM and soundtrack updates to elevate the audiovisual experience. Platform-specific updates like Steam Trading Cards and Steam Deck optimization are also on the list. Additionally, to keep our Ratizens entertained before lau…
- Ratopia 4-Panel Comic (Ep 1 - Ep 6 , End) - 20 March 2025
Hello all, it's Cassel, developer of . I would like to once again share the news that Ratopia’s official release date has been set for May 1st (11:00 AM UTC+9). To ease the boredom of our Ratopian leaders until the release, I have prepared a 4-panel comic. A total of six episodes will be uploaded, one per week until the week before the release. The next episode will also be added to this announcement, so please enjoy! Ep 1 Ep 2 Ep 3 Ep 4 Ep 5 Ep 6 Thank you all for visiting Ratopia Cartoon page. I hope you all have a great year, and hope you enjoy the game.
- Ratopia DevDiary #36 - Leader Perks - 1 March 2025
Hello all, it's Cassel, developer of . This month, I spent most of my time playtesting, polishing the game, and handling company business matters. With the official launch just around the corner, we have been conservative in adding new content. As a result, I feel like I’ve almost run out of new topics to introduce in the development log. So, for this entry, I will briefly introduce the Leader perks that will be added at the official launch and wrap it up there. Leader perk The Leader perk system was an idea conceived in the early stages of planning, but it had been so long that we had almost forgotten about its existence. When we posted an announcement on Steam ahead of the official release in May, a player asked about the locked feature in the Leader information window. It was only then that we realized the need to work on this before the official launch, prompting us to revisit the o…
- 1.0.0410 Update - 17 February 2025
Hello dear leaders of Ratopia!! This time, in preparation for the official release, we have added a few new Shaman-themed structures and worked on overall balance and quality-of-life improvements. Until May, instead of focusing on updates, we plan to review and refine incomplete elements to ensure a more polished official release. If you have any great improvement suggestions that haven’t been implemented yet, please share your thoughts on Steam or Discord! ːsteamhappyː Notice: Those with this icon(💌) are inspired by the players’ opinions. Thank you so much again. Patch List ▶A new Summer Event has been added. - The new Summer Event can be encountered during the first summer. - If it does not occur, it will take place in the following summer. - Achievements related to the event have been added. ▶Five new Shaman-themed structures have been added. - Bone Trap - A structure that stores so…
- Ratopia Official Release Schedule Announcement - 4 February 2025
Hello all, it's Cassel, developer of . After nearly four years of development, we are finally set to officially release on May 1st. However, this date does not signify the end of ’s development; rather, it serves as an important milestone, allowing us to balance our ambitions for additional content while securing time to refine the game to an even higher level of completion. With only a short time left until the official release, our upcoming updates will primarily focus on improving inconvenient elements and enhancing the quality of life (QOL) experience for players. February - New Religious Structures - New Religion & Seasonal Events - Ratizen Information UI improvements March to April - Ratizen Search & Favorites feature - Ratizen AI improvements & Game Optimization - Starting Settings improvements - New Decoration Elements - Addition & Improvement of Tutorial Sections - Additional R…
- Ratopia DevDiary #35 - Religion System : Purgon Order - 1 February 2025
Hello all, it's Cassel, developer of . This time, following the previous installment, I’d like to introduce some details about the Purgon Order and share the challenges I faced during development. The content is quite lengthy this time as well, so it might be a bit much for light reading. That said, I’ll try to mix in some -style humor to keep things from feeling too heavy. Purgon Order The Purgon Order is a religious group that worships the sun, using Purifying Lilies that bloom from deceased Ratizens to summon spirits. In contrast to the secretive atmosphere of the Umbran Circle, the Purgon Order takes a more active approach to spreading their faith, drawing Ratizens to their Grand Temple and instilling belief in them. (No violence is involved.) The conversion method of the Purgon Order was designed differently from the Umbran Circle to provide a distinct gameplay experience. Initiall…
- 1.0.0401 Hot Fix - 17 January 2025
Patch List Notice: Those with this icon(💌) are inspired by the players’ opinions. Thank you so much again. -💌 Added a text display in the construction window to show the number of the respective buildings currently built in the city. -💌 To reduce the initial difficulty of the Umbran Circle while maintaining the overall challenge, the Evangelism and Renewal effect values for each Idol have been adjusted. -Idol of Sloth - Evangelism Rate: 10% → 15% -Idol of Gluttony - Evangelism Rate: 10% → 12% -Idol of Joy - Evangelism Rate: 10% → 9% -Idol of Cleanliness - Evangelism Rate: 10% → 6% -Idol of Extravagance - Evangelism Rate: 10% → 3% - Renewal Time: 6 → 9 Bug Fix - 💌 Fixed an issue where save files accumulated abnormally large sizes when using the Shaman content. - After the game update, saved files will now be stored in a compressed and normal format. - 💌 Fixed an issue where the "Exi…
- 1.0.0400 Shaman Update - 14 January 2025
Hello dear leaders of Ratopia!! Thank you for patiently waiting for the update over such a long time. This time, we’ve added two new religions and their associated structures to the game. With the addition of such extensive content, there may be bugs that we’ve overlooked. If you encounter any issues, please report them via Steam or Discord, and we’ll address them promptly through hotfixes. Patch List Notice: Those with this icon(💌) are inspired by the players’ opinions. Thank you so much again. 🔮28 types of Spell-related structures have been added. Spell-related structures can be researched through the Spell Desk, a royal structure! These Spell structures can be unlocked as the number of Ratizens with faith increases in the city. Additionally, more related structures will be added in the future, so stay tuned! ※Jungle Block, Flea Removal Facility , Temple of War have been relocated t…
