All the necessary features for Ver1.0 have been implemented!
While we still have ideas for major updates, we are pausing development for now to focus on sharing the knowledge we gained during production and the solutions to challenges we encountered, via YouTube.

During the creation of these videos, we will also continue to work on updates based on your feedback and bug reports.

In Ver1.0, we made every effort to fix bugs and ensure players would not get confused. However, since the development and verification were done by one person, there may still be some issues that have been overlooked.
If you notice any "points of concern" or have suggestions on "how you would like things to be improved," please let us know, and we will respond as much as possible.
While it may not be possible to fulfill all requests due to the complexity of game balance and the difficulty of implementation, your feedback will be an invaluable reference for determining the direction of future improvements, so please feel free to share your thoughts.
When reporting bugs, providing as much detail as possible will be very helpful.

“Zombies are passing through open doors. I think this should be avoided.”
At present, the solutions we have are costly in terms of processing and implementation. We will address this once a more optimal solution is found.

“The contamination effect is causing motion sickness. Could you remove the screen shaking effect?”
We have adjusted the effect to a level that should minimize motion sickness, but due to individual differences, some players may still feel discomfort.
If you find it uncomfortable, please let us know. We are considering options such as adding adjustable intensity settings for these effects.

When we released Ver0.2 for early access, we immediately started working on major revisions for Ver1.0, and the feedback we received was delayed as a result.
Additionally, as my main job became busier, I was unable to secure time for development, causing a significant delay in the release of Ver1.0.
I apologize for the inconvenience, but we have now put major updates on hold, and my main job is no longer overly busy, making it easier to implement feedback-based adjustments.
Please feel free to report any issues.


While virus research in the early stages of the game is not particularly difficult, the world becomes increasingly harsh towards the endgame, requiring thorough planning. Simple tactics alone will no longer suffice.
We hope that players will rise to the challenge and successfully clear the final mission.
(We may have overdone the achievement debugging, as Steam’s global achievement display is currently not working correctly, but as far as we know, no one has completed the game yet.)

That said, we have greatly reduced the difficulty of the planning required in the endgame compared to our original intentions.
If more players start clearing the final mission, we will prepare for the next set of challenges and new content.

• A new page has been added to the screen that opens from the info button in the top right corner of the Virus Research Facility, allowing you to check the progress of virus research.

In addition to the explanations provided in the story, supplementary information is also available.