Petit Planet's release date is December 4, 2026. The announced December launch covers PC, iOS, and Android; Nintendo Switch 2 has a separate 2027 release window. As of November 2, the public game has not launched, and the Final Beta has already ended.
The official launch-date panel labels December 4, 2026 in UTC+8. It gives a calendar date, rather than a verified server-opening hour for every region. Do not convert the date into a local countdown using an assumed midnight opening.
The dates that affect access
| Event | Date or window | What it means |
|---|---|---|
| Final Beta began | September 20, 2026 | Invited players tested an unfinished build. |
| Final Beta ended | October 19, 2026 | The previous test is no longer the way to start playing. |
| Pre-download | December 1, 2026 | Files can be prepared before public access opens. |
| Public launch | December 4, 2026 | The announced release for PC and mobile. |
| Nintendo Switch 2 | 2027 | A later console window, without an exact day here. |
The App Store lists December 4, 2026; its expected date does not specify a server-opening hour.
Public release and an old test invitation
A Final Beta invitation was permission to enter that particular test. It is not evidence that the public servers are available now. Equally, missing the test does not change the announced December launch date.
The Final Beta was limited access and used a data wipe. Its account information and game data were scheduled for deletion after the test unless otherwise authorized. Do not plan around carrying a beta farm, collection, or unlocked progression into the public release.
Old search results may still say that Final Beta sign-ups are open. Read the dated notice instead: the official news list records the end of the test on October 19. A page title or old video title can remain visible after its instructions expire.
The first announced season
The first announced season is the Season of Snowfall, with new Neighbors, events, and seasonal stories. Further core gameplay, social features, the ecology archive, and Neighbor interactions are planned to expand as the seasons change. No exact cadence or end date for that first season is specified, so keep its seasonal content separate from the confirmed December 4 launch date.
What to prepare before December 4
- Choose PC, iOS, or Android if you want to follow the December release.
- Use the official website's platform route to identify the correct store listing.
- Check that the listing names Petit Planet and COGNOSPHERE PTE. LTD.
- Review the requirements displayed for your device and region.
- Treat pre-registration and a store reservation as preparation, rather than immediate access to a playable client.
The Apple listing currently says iOS or iPadOS 15.0 or later and an expected date of December 4, 2026. A store's current compatibility information is more relevant to a release device than specifications copied from an older beta.
Switch 2 has a different schedule
The Switch 2 version is planned for 2027. That announcement does not move the PC and mobile date into 2027, and it does not confirm an original Nintendo Switch version.
If you specifically want to play on Switch 2, the useful next details are its exact release day, Nintendo store availability, and platform-specific account rules. The announced year alone does not establish those details. Cross-save and cross-play should also be checked separately from release timing.
Launch time and download timing remain separate
Pre-download is listed for December 1, 2026. This lets you prepare the files before the December 4 release; it does not mean the public servers open on December 1. No precise public server-opening hour is established in this guide.
Keep the date in your calendar, then use the launch notice and your platform's store status to decide when you can actually install and enter. An old test installer is not a substitute for that release route.