Zerko

Rainbow Train

Zerko app icon
4.6 stars72 reviews5,000+$3.49
PuzzleEveryoneVersion 1.1Updated 10/4/2025, 10:35:52 AM
Open in Store
Some call it reverse sudoku, while others call it a nullification game, but it's Zerko - a puzzle game filled with shapes, numbers, and a straightforward goal: make every number zero.

To achieve this, you need to strategically place blocks of various shapes and values so that the numbers on the board effectively "remove up" to zero.

Like all my games, this one too is about relaxation... Just chill. There are no points, no time pressure, no data collection, no in-app purchases, no ads, no nonsense ;) My only hope is that you'll enjoy it and that I'll be able to add new content and levels for you in the future.

Relaxing audio by: Marek Koszczyński
Developer email
maciej@rainbowtrain.eu
Released
Mar 26, 2024
Current version
1.1
Android version
6.0
Reviews & Ratings
4.6
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😊 Highly rated by users
72 reviews

Screenshots

Zerko screenshot 1Zerko screenshot 2Zerko screenshot 3Zerko screenshot 4Zerko screenshot 5Zerko screenshot 6