Hello everyone, 
It’s Friday. Once again, I’m only now able to share the update date—lately I keep forgetting things here and there. The December update is scheduled for Tuesday, December 23rd. I’m really sorry I couldn’t let you know a bit earlier.
Today, I’m sharing a video with the latest development updates and this week’s results for the December patch. We’ve been working especially hard on the winter outfits this time. The event we prepared will run until January 31th, and once the calendar system is completed, we’ll integrate it properly.
Our character artist also wanted to show off a piece created in inZOI, so I’ve included it as well. I hope you enjoy this week’s video, and as always, we welcome your thoughts and feedback.
Because your feedback has been far more diverse and insightful than we expected, we’ve formed a dedicated team to gather and deliver your comments more effectively. They’ll be working closely with the inZOI team to ensure that none of your valuable suggestions are missed and that they make their way into the game.
We’ll keep working hard toward the December update.
See you again next week!
kjun 
🎉 Hello everyone,🥳
It’s Wednesday again. And today, we finally wrapped up the December update. Normally, once the development team finishes our part, the build must pass QA—honestly, it feels exactly like taking an exam and waiting for the results. I barely slept last night. While QA proceeds and L10N is finalized, developers enter a kind of waiting period until the update is officially approved.
I’m deeply grateful to my teammates who are building inZOI with me. They chose to join this project with courage, and I appreciate them every day.
Thank you again for leaving so many thoughtful comments this week. I’ve been reading each one carefully as we shape our plans for next year. After about a week of review, I’ll be able to share the full roadmap for 2026.
Legal & Crime System
Thank you for all the feedback and encouragement regarding the development of the legal and sentencing systems. We’ve decided to move away from a simple “rabbit hole” court and instead make it a truly playable system. Because it was built in a short period of time, I feel a bit heavy-hearted about its current limitations.
Many players requested the addition of roles such as lawyers and jurors within the courtroom. There were also many suggestions for more realistic police procedures—handcuffing during arrest, escorting suspects into a police car, transportation to the station, and more. Since this was our first attempt at building these systems, we couldn’t include everything, but development for these features will begin in the next update.
You also suggested:
-Summons being sent after arrest
-Police issuing warrants if the suspect ignores the summons
-A wider range of criminal activities such as hacking, theft, car theft, bank robbery, etc.
-Difficulty-based security systems, minigames, noise-level mechanics
-Equipment like smoke grenades or tranquilizers
We will continue to deepen the crime system gradually, as promised. Now that the foundation exists, we can truly expand it.
There were also ideas about criminals becoming more skilled through repeated crimes—reducing their chance of getting caught—as well as cooperative crimes through joining criminal organizations. This aligns closely with what the dev team wants as well, so development will continue after the December update.
We also received requests for more courtroom reactions (jurors, family, defendants), courtroom humor, and various sentencing outcomes (extended jail time, fines, etc.). We couldn’t include house arrest or more detailed fine systems due to time constraints this round, which is unfortunate. In the future, we would also like to expand content involving scams or fraud depending on relationships and tools used. 
Family Tree & Family Gameplay
There were many requests for a more realistic family tree that includes multiple generations, adoption, blended families, and legal family structures (step-parents, guardians, etc.). Many also asked for emotional responses and long-term relationship impacts when family members face legal trouble.
The family tree update will go live next week—please try it out and share your thoughts!
You also suggested detailed developmental milestones for children, such as learning to walk and talk, potty training, school life, grades, after-school activities, allowance rules, curfews, and a wide range of interactions from newborns to teens.
A special thank you to everyone who sent us reference photos and settings. These references help the dev team more than you can imagine—we actually hold meetings using the photos of motions and poses that you send us. ^^;;
Your clothing and hair reference images are also incredibly helpful, so thank you again. 
Seasonal & Festival Events
Many players suggested winter and Christmas features such as snowfall, snow accumulation, snowmen, snowball fights, and house/city decorations. Seasonal events like taking photos with Santa, Christmas parades, ice skating, and fireworks were also requested, along with seasonal weather effects on daily routines (school closures, commuting difficulty, etc.).
For this winter update, we wanted to allow snow to fall instantly, but forcing the weather caused too many systemic issues in a simulation genre like ours. In the end, winter needs to arrive naturally with the passage of time—unfortunately, instant snowfall had to be cut. Maybe someday!
Character Customization & Animation
There were many requests for:
-More detailed face-part presets
-Additional body-type adjustments
-More hairstyles (long hair, curly hair, etc.)
-More men’s and children’s clothing
-Improved movement animations (walking styles, sitting poses, using a phone, emotions, etc.)
We are working on child and toddler customization, and we will keep improving animation fidelity. The dev team knows how important animation quality is—especially since inZOI uses realistic graphics.
Vehicle Systems
Players requested improvements to driving, car color customization, repairs, gas stations, breakdowns, and car washes.
Starting next week, we’ll begin preparing improvements to the vehicle system, with parking fixes being our first priority.
Thank you again for all the excitement and feedback regarding the December update and the future of inZOI.
This Friday, we’re planning a small celebration with the teammates who worked hard throughout 2025. After such a chaotic year of developing this incredibly challenging life simulation, we want to take one day to rest, eat delicious food, solve quizzes, and recharge for the new year.
Our team tests inZOI for one hour every single day at lunch. We’ve logged around 14,550 internal feedback notes, with one teammate alone contributing 458 notes. Without teammates like this, inZOI would never have been possible. That’s why we prepared this party with so much care. (Secretly… I’ve also prepared surprise gifts for them. Don’t tell anyone!) 
Someday, I would truly love to invite all of you to a celebration like this. For now, I’ll share just the invitation.
Wishing all of you a warm and joyful holiday season.
k.jun 