News
Follow the game’s journey through official milestones, test dates, and launch news.
The journey so far
From the first trailer to the road ahead. Key dates from official announcements.
Verified
Cozy Cosmos trailer & first beta sign-ups
HoYoverse introduced its cosmic life simulation game and opened applications for the Coziness Test.
Official announcement (English) — Cozy Cosmos trailer & first beta sign-upsCoziness Test opens
The first closed beta opened at 09:00 (UTC+8), with access rolling out in batches.
Official announcement (English) — Coziness Test opensCoziness Test scheduled close
The official shutdown notice set the end of this data-wipe test for 10:00 (UTC+8).
Official announcement (English) — Coziness Test scheduled closeStardrift Test opens
The next testing phase began at 09:00 (UTC+8), with invited players entering at their assigned times.
Official announcement (English) — Stardrift Test opensStardrift Test scheduled close
The official notice set the end of the Stardrift Test for 10:00 (UTC+8).
Official announcement (English) — Stardrift Test scheduled closeFinal Beta sign-ups & launch window
Final Beta applications opened, alongside the announcement of a Winter 2026 launch.
Official announcement (English) — Final Beta sign-ups & launch windowHoYoPlay pre-registration opens
Players could pre-register through the HoYoPlay launcher for the upcoming release.
Official announcement (English) — HoYoPlay pre-registration opensFinal Beta goes live
The Final Beta opened at 09:00 (UTC+8), marking the latest pre-launch testing phase.
Official announcement (English) — Final Beta goes live- Planned
Final Beta scheduled to close
The test is scheduled to end at 10:00 (UTC+8). This is a planned milestone, not a completed event.
Official announcement (English) — Final Beta scheduled to close - Winter 2026Planned
Official launch window
Petit Planet is scheduled to launch in Winter 2026. An exact day has not been announced in this notice.
Official announcement (English) — Official launch window
News articles
Final beta invitation update
All Final Beta invitations had been sent by September 24, 2026.
Release date & beta timeline
Winter 2026 launch window and the confirmed Final Beta schedule.
Beta details may change before launch. Check official notices for the latest status.