Dot Matrix Containment
A spreading front, a handful of walls, and the edge of the screen. Fifty levels, nine languages, and a one-time unlock that removes every ad and lets it run with no connection at all.
Free to play with ads; free play needs an internet connection so those ads can load.*
How to play
Something is spreading across the panel, one ring per turn, by a rule that never varies. Each turn you place one wall — or pass, which is sometimes the right move. Seal the front off before it reaches the edge and the level is yours. You are racing arithmetic, not a dice roll: the front adds a ring every turn while your budget does not grow.
Features
- Fifty levels — each one proved sealable before it ships, by replaying a winning line through the same rules the game runs.
- Second Chance — rewind five turns after a leak reaches the edge, once per run, on the board you were already working.
- Premium Unlock — one payment, no ads, plays offline. Not a subscription.
Never unfair
The spread is a fixed rule applied to the board — no randomness during play, and nothing hidden. Two identical sequences of moves always produce the identical board. Every shipped level carries a winning line that is replayed and checked before release, so a level that cannot be sealed cannot reach you.
Privacy and terms
* Ads are how the free version is paid for, and they cannot load offline. The Premium Unlock removes both the ads and the requirement.