Cavernum: Number Puzzle

Matching Brain Game

Free · In‑App Purchases

Think ahead, dig deeper, and master every move. Cavernum turns simple number matching into a puzzle of strategy, tools, and satisfying chain reactions. 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.

  • 5.0
    out of 5
    5 Ratings

**What changed in Cavernum** Level 3 now introduces itself properly. Players were getting stuck there — and not because the level is hard. Level 3 is the first place where reaching for Swap or Add # actually helps, and nothing in the game said so. So a player who needed one read it as their own failure rather than as the level doing its job. There's now a short intro the first time you land there. It points at the two tools, explains what Add # actually does — it takes every number on the board, in order, and lays them down again after the last tile — and tells you the game has left extra hints on that level. Hints are free against your move count, incidentally. Looking isn't digging. The level itself is unchanged. Same board, same solutions, same everything. Only the explanation is new. **And the fixes** Finishing the final level used to crash the game. It now tells you more levels are on the way, which is true. A handful of smaller ones: numbers no longer snap back after an ad, the level's music no longer keeps playing over the next level or under an ad (it used to loop until you relaunched), swapping tiles no longer leaves the board half-finished, a failed purchase now says so instead of claiming success, and "NEW RECORD" no longer appears when the score couldn't actually be saved.

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

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • Greenfox Ventures LLC
Size
  • 93.4 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.
Languages
  • English
Age Rating
4+
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