Fun
Although I do wish later levels were a bit more challenging!

A minimalist puzzle game where you expand numbered tiles to fill empty spaces. With over 400 challenging levels, it offers a relaxing yet engaging experience. Hints are available if you get stuck.
1.1.4
October 22, 2025
- Update 3rd-party libraries. - Minor bug fixes.
$19.99
Donate high price.
Include 'Remove Ads' features.
FillKo's core gameplay involves expanding numbered tiles in four directions (up, down, left, right) to fill all empty spaces on the board. It's easy to learn but offers increasing complexity.
FillKo features over 400 challenging stages, providing a substantial amount of content for players to enjoy and test their puzzle-solving skills.
Yes, FillKo contains advertisements. Players have the option to purchase an in-app upgrade to remove these ads and enjoy an ad-free experience.
The provided data does not specify if FillKo can be played offline. However, many puzzle games of this nature are designed for offline play.
FillKo is compatible with iPhone, iPad, and iPod devices, as indicated by its supported devices list.
FillKo was last updated on October 22, 2025, with version 1.1.4, indicating recent developer support and potential for ongoing improvements.
FillKo has an age rating of 4+, making it suitable for a wide range of players.
Yes, FillKo provides a hint system to assist players who may get stuck on a particular level, ensuring a smoother progression through the puzzles.