Cavernum: Number Puzzle
Matching Brain Game
Free · In‑App Purchases
Every one of 60 levels tuned and solved by hand until it was actually hard. Match pairs that equal ten, work around the blockers, and dig deeper.
Cavernum is a number-pairing puzzle game for casual puzzle players of all ages. It does not require an account or sign-in.
Descend into the Cavern of Numbers.
Match two tiles that are equal, or that add up to ten, and clear a path through the stone. Simple to learn. Not always simple to solve.
Each level is a cave with its own shape and its own problem. Clear tiles and the grid compresses, closing gaps and opening connections you couldn't see a move ago. Paths wrap around edges. Diagonals count. The board you start with is never quite the board you end up solving.
The caves go deeper, and they don't stay simple. Void tiles open in the floor. Rock blockers wall off the routes you wanted. Gates and chests wait further down, past the point where guessing stops working.
Four tools help when you're stuck: Hint, Undo, Swap, and Add Numbers. Use them well. Swap only works once per level, and there's no second chance at it.
No account. No sign-in. Play anywhere, though ads need a connection.
Cavernum is a puzzle you can pick up in a minute and think about for a lot longer.
Level 1 now teaches the game on the board itself the first time you play it, instead of a page of rules up front. It shows how pairs work, how matches run out past the cave walls and back, and how matches wrap from the end of one row to the start of the next. The level is unchanged.
Also fixed a crash that could happen when a notification, phone call, or screen recording interrupted the game while music was playing. The game's background music now plays alongside your other audio instead of pausing it, and stays quiet while you're already listening to music or a podcast. Sound effects are unchanged.
The developer, Greenfox Ventures LLC, 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:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Greenfox Ventures LLC
- Size
- 93.6 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- 15 Undos $9.99
- 5 Undos $3.99
- 1 Undo $0.99
- 50 Hints $11.99
- 20 Hints $5.99
- 5 Hints $1.99
- Remove Interruption Ads $14.99
- Copyright
- © 2026 Greenfox Ventures LLC
