- Ratocalypse Dev Diary #12 - Making the Opening - 4 September 2026
Cheese: Hello, everyone! This is Cheese from the development team.Last month, we replaced our existing dummy opening with fully finished assets, and showed it off for the first time at BIC, where we recently exhibited .If you stopped by and played the demo there, there's a good chance you already saw it.In this dev diary, we'd like to walk you through how this opening came together.Researching ReferencesWe had experience making animated openings for our previous titles, and , but in both of those games the opening worked more like an intro video that led straight into the title screen.This time, we wanted the opening to play up to the moment a player starts the game, so the game feels more immersive and natural with the actual in-game experience.Since the opening would play at a different point than in our previous titles, we started by looking at other games that tell their story in a…
- Ratocalypse DevDiary #11 - QoL Improvements and Preparing for BIC - 5 August 2026
Cheese: Hello, everyone! This is Cheese from the development team.In this dev diary, we would like to introduce some of the major improvements we have been working on, as well as share how we are preparing to showcase the game at BIC, the indie game festival taking place in Busan this August.Mouse Movement Controls During the PlayX4 exhibition last May, many of the players who tried the game told us that they would like to be able to control more parts of the game using only the mouse.Although most in-game features could already be controlled with the mouse, mouse movement was not available during field exploration. Many players found this limitation inconvenient, so adding mouse movement controls became one of our top priorities for this round of improvements.Moving around using mouse controls Players can now move freely around the field using the mouse, making it possible to play comf…
- Ratocalypse DevDiary #10 - Title Screen - 2 July 2026
Cheese: Hello, everyone. This is Cheese, developer of .In this month’s devlog, we’d like to talk about the very first screen players see when they launch the game: the title screen. Although it has been finished for a little while now, we wanted to walk you through the thought process behind the title illustration, the logo, and the animation work.Reference Research features several key characters and is set in a medieval apocalypse. To capture that atmosphere properly, we started by gathering title illustrations from other games that conveyed a similar mood.Reference title images we collectedSince our game features many characters, we naturally gravitated toward compositions that could place multiple figures within a single illustration in a balanced way.As we began planning the composition based on these references, one important question came up:Which characters should we include in…
- Ratocalypse DevDiary #9 – Refining the Direction - 9 June 2026
Hello, everyone. This is Cheese, developer of .This May, we took part in PlayX4 and held the first public demo of .Although there are still many areas we need to improve, we would like to sincerely thank everyone who visited our booth and took the time to play the game.In this DevDiary, we would like to talk about what we prepared leading up to PlayX4, as well as share some thoughts after the exhibition.Preparing Two Different BuildsSince we were planning to take part in PlayX4 and run the third user test at the same time in May, we had to prepare two separate builds.First, the PlayX4 exhibition build was designed around a more linear series of combat missions, so that players could quickly get immersed in the game within a short amount of time. We adjusted the overall flow so that the demo would end after a total of three expeditions.At the venue, we guided players to leave feedback th…
- 3rd Public User Test - 20 May 2026
Hello, Ratizens!The third user test for Ratopia has now begun.Thanks to the feedback you shared during the first and second tests, we have made many improvements and updates to the game.We would greatly appreciate your valuable feedback during this test as well.Please enjoy the playtest, and we would be grateful if you could share your feedback through the survey linked below.📜Survey Link : https://forms.gle/8YsMcmfrifGTx9pq7This test will be available through Steam Playtest and will run until May 31.This test version supports 🌐Korean, English, and Japanese.We will do our best to prepare so that we can provide our services in an even wider range of languages in the future.Thank you sincerely for waiting.We will continue striving to become an ever-improving Cassel Games.
- Ratocalypse DevDiary #8 – Refining the Direction - 1 May 2026
Hello, this is Cheese, developer of . Throughout March and April, we conducted our second user test as well as internal testing. Based on the feedback we received during that process, we took another close look at the core systems of . After reviewing a wide range of opinions, we decided to revise the flow of combat and several related systems. In this DevDiary, we would like to share what concerns we had with the existing systems of , and how we are reworking the game based on those concerns.Looking Back on the Previous Combat SystemBefore going through the changes one by one, we would first like to look back on what the original system was aiming for, and what we learned throughout the development process so far.The core goal of was to combine the strategic depth of turn-based combat with the fast-paced flow of auto-battle. We wanted to reduce the sense of sluggishness that can someti…
- Ratocalypse DevDiary #7 - Developing and Using Internal Tools - 24 April 2026
Hello, this is Cheese, currently developing .In March, we focused on improving the tutorial and polishing the game overall in preparation for the second user test, which is currently underway. However, we felt that those topics alone would make this DevDiary a bit lacking. So in this entry, we would like to introduce some of the tools we either created ourselves for development convenience or are currently using, including how they were developed and how they are being used in practice.Map Editor features a total of three expedition themes, and for each theme, we needed to create a variety of map stamps across three difficulty levels. Even if we assume there are only 10 maps per difficulty, that still means designing 30 maps per theme, or 90 maps in total. And since that number does not include event areas or various special maps, the actual number of maps we need is much higher. Becaus…
- 2nd Public User Test - 25 March 2026
Hello, everyone!The second playtest for Ratocalypse is now live.This test will be available through Steam Playtest and will run until April 5.We hope you enjoy the playtest, and we would greatly appreciate it if you could share your feedback through the survey linked below.Survey Link : https://forms.gle/Ni1kUHnWGaGfaBGu5At the same time, we also have one unfortunate piece of news to share.Due to the tight development schedule, the current test version is only available in Korean and English.We sincerely apologize to everyone from around the world who has been waiting for the game.We kindly ask for your understanding, and we will do our very best to prepare support for more languages in the future.Thank you so much for your patience and support.We will continue striving to become a better and ever-improving Cassel Games.
- Ratocalypse DevDiary #6 - Content Development (Part 2) - 3 March 2026
Hello, this is Cheese, the developer of .As mentioned in the previous Dev Diary, we continued focusing on content-driven development throughout February. In this Dev Diary, I’d like to talk about the Scientist theme and improvements to the Last Stand system.Additionally, during March, we plan to take some time to polish the recently added content and conduct a second small-scale user playtest. More details will be shared through our Discord channel, so if you’re interested, please consider joining the channel in advance. 😊Scientist-Themed Expedition There are currently three expedition themes in .The General theme, equipped with high defense and solid base stats, and the Shaman theme, which may have more modest stats but makes up for it with a wide variety of skills, were the first two themes to be developed.This time, we worked on adding maps, objects, and enemies related to the third…
- Ratocalypse DevDiary #5 - Content Development (Part 1) - 3 February 2026
Hello, this is Cheese, the developer of Ratocalypse.Before our Steam page was launched, we posted our development diaries exclusively on our company’s official website.Link: https://casselgames.com/ratocalypsedevdiaryGoing forward, we plan to regularly share a development diary here on this Steam page once a month. Thank you for your support.Following the test conducted last month, we first focused on organizing our upcoming development milestones based on the feedback we gathered. With those milestones in place, we decided to concentrate our efforts during January and February on developing new content and features.In this dev diary, I’d like to walk you through the various elements that were developed throughout January, one by one.Leader SkillThe first piece of content we’d like to introduce is the Leader Skill, a set of abilities that can be used by the expedition leader regardless…
- First Public User Test - 12 December 2025
Hello, Leaders!We are delighted and excited to finally present the test version of Ratocalypse.This test is available through the Steam Playtest feature and will run until December 28th.However, we must also share an important and unfortunate update.Due to our tight development schedule, the current test build supports Korean only.We sincerely apologize to all our fans around the world who have been looking forward to the game.+) 12.18 UpdateAs of December 18, we have updated the playtest version and are now able to provide an English version that is approximately 90% translated.We would greatly appreciate it if English-speaking players could participate in the playtest and complete the survey, as it would be a huge help to the development.Playtest Survey Link: https://forms.gle/gwehphZWncz2h4EX6We kindly ask for your understanding,and we will do our best to support more languages in th…
