Cosmo Merge: Planets Puzzle
daily space merge puzzle game
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
one run a day. 100 drops, same stars for everyone. race Prof. Cosmo, then share a spoiler-free emoji grid. a cozy space merge puzzle — same planets touch, they evolve.
one run a day. same stars for everyone.
how far can you grow in 100 drops?
Daily Cosmos is a daily puzzle the whole world plays on the same board.
one real run, about three minutes, and it's done.
share your result as a spoiler-free emoji grid,
and see how your friends did on the very same stars.
same planets touch, they evolve.
that's the whole rule.
drop a speck of stardust, and it becomes a meteor.
two meteors meet, and a comet is born.
moon, terra, sun —
tiny specks slowly grow into a great big universe.
Cosmo Merge is a cozy space merge puzzle,
just right for little pockets of time.
◆ Daily Cosmos (one real run a day)
- the same stars for everyone, and 100 drops to grow them
- if the board fills up, one rescue comes to help — once
- race Prof. Cosmo, an AI on the very same board. who's ahead at the same drop?
- share your result as an emoji grid. no spoilers
- practice as much as you like on another board. your runs go on a calendar
◆ easy to play
- merge matching celestial bodies to evolve them
- link chains together for big scores
- no timers, no lives — play at your own pace
◆ endless mode, for taking your time
- keep dropping until the board fills up. push your best score a little higher
- stuck? undo, hammer, and hold are there for you
- climb the Game Center leaderboard against players worldwide
◆ new every day
- Today's Missions: three easy challenges, refreshed daily
- login bonuses and streaks make it easy to keep coming back
◆ collect & compete
- Star Album: meet all 12 celestial bodies and keep the memories you make together
- 30 achievements to chip away at, one by one
◆ this might be for you if…
- you want one small puzzle to look forward to every day
- you like a gentle brain-teaser in your spare moments
- you want to drift around a cute, cozy universe
- you enjoy nudging your high score a little higher, day by day
* Contains ads. Offers in-app purchases (an ad-free Premium, and coins for items).
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
a small housekeeping update — no new features this time.
the universe is quietly waiting for you, as always.
The developer, DOREMI K.K., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- DOREMI K.K.
- Size
- 50.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Star Drops (Large) $5.99
- Star Drops (Small) $0.99
- Premium + 1000 Drops $5.99
- Star Drops (Medium) $2.99
- Premium $4.99
- Copyright
- © 2026 DOREMI K.K.

