Nurikabe: Islands & Walls v2.5.0

Conceptis Ltd.

• In-app purchases

About this app

Nurikabe: Islands & Walls is a puzzle game that solves the problem of providing a challenging and engaging logic-based experience for players who enjoy brain teasers. The app benefits puzzle enthusiasts and casual gamers alike, offering a unique gameplay mechanic that sets it apart from other games in the Game Puzzle category. With its excellent user rating and top-tier app status, Nurikabe: Islands & Walls stands out for its high-quality content and smooth performance. However, the app's limited download numbers may indicate a lack of visibility compared to more popular puzzle games.

Pros

The app's excellent user rating of 4.8/5 indicates a high level of satisfaction among players, suggesting that the game is well-designed and enjoyable to play.
The developer, Conceptis Ltd., has a reputation for creating high-quality puzzle games, which adds to the app's credibility and trustworthiness.
The app's offline capability and lack of ads make it a great option for players who want to enjoy puzzle games without interruptions or distractions.
The in-app purchase model allows players to access additional content and features, providing a way to extend the game's replay value without being too aggressive or intrusive.
The app's small size and low system requirements make it accessible to a wide range of devices, including older models and those with limited storage capacity.

Cons

The app's limited download numbers may indicate a lack of visibility or marketing efforts, which could make it harder for new players to discover the game.
The in-app purchase model may be a turn-off for some players who prefer to pay a one-time fee for a game or dislike the idea of microtransactions.
The app's lack of permissions requests may be a positive aspect in terms of privacy, but it also means that the game may not be able to offer certain features or functionalities that require access to device data or sensors.
Some players may find the game's logic-based puzzles too challenging or frustrating, which could lead to a negative experience or a lack of engagement.

Best for: The ideal user for Nurikabe: Islands & Walls is a puzzle enthusiast or casual gamer who enjoys logic-based brain teasers and is looking for a challenging and engaging experience, likely between the ages of 18 and 55, with a medium to high level of technical skill and a willingness to learn and adapt to new gameplay mechanics.

Developer Description

Island logic puzzles

Partition between clues with walls to create islands with corresponding size! Each puzzle consists of a grid containing clues in various places. The object is to create islands by partitioning between clues with walls so that the number of squares in each island is equal to the value of the clue, all walls form a continuous path and there are no wall areas of 2x2 or larger. Each island must contain one clue and be isolated from other islands horizontally and vertically.

Nurikabe are addictive island-forming puzzles which were invented in Japan. Using pure logic and requiring no math to solve, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages.

The game features a highlighting option to help see if a wall segment is about to become isolated, and an island size counter to view how many squares belong to an island.

To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Conceptis Nurikabe includes a Weekly Bonus section providing an extra free puzzle each week.

PUZZLE FEATURES

• 90 free Nurikabe puzzles
• 30 extra-large puzzles bonus for tablet only
• Extra bonus puzzle published free each week
• Multiple difficulty levels from very easy to extremely hard
• Puzzle library continuously updates with new content
• Manually selected, top quality puzzles
• Unique solution for each puzzle
• Hours of intellectual challenge and fun
• Sharpens logic and improves cognitive skills

GAMING FEATURES

• Unlimited check puzzle
• Unlimited Undo and Redo
• Highlight wall segments
• Show island size counter
• Concurrently playing and saving multiple puzzles
• Puzzle filtering, sorting and archiving options
• Dark Mode support
• Graphic previews showing puzzles progress as they are being solved
• Portrait and landscape screen support (tablet only)
• Track puzzle solving times
• Backup & restore puzzle progress to Google Drive

ABOUT

Nurikabe have also become popular under other names such as Islands in the Stream and Cell Structure. Similar to Sudoku, Kakuro and Hashi, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.

Privacy

Since the app requests no permissions, players can enjoy the game without worrying about their personal data being collected or shared. However, as with any app, it's essential to be cautious when making in-app purchases and to review the developer's privacy policy to understand their data collection and usage practices. To ensure a safe and secure experience, players should only download the app from trusted sources, such as the Google Play Store.

Tips

To get the most out of Nurikabe: Islands & Walls, players should start by completing the tutorial levels to understand the game's mechanics and rules. They can also experiment with different puzzle sizes and difficulty levels to find the perfect challenge for their skills. Additionally, players can optimize their device's performance by closing other resource-intensive apps while playing Nurikabe: Islands & Walls, ensuring a smooth and uninterrupted gaming experience.

What's New

This version improves performance and stability.

In-app purchases

$0.99 - $3.99 per item

Version Information

Version: 2.5.0
Downloads: 50K+
Updated on: Dec 3, 2025
Released: Nov 28, 2018
Requires: Android 8.0

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Nurikabe: Islands & Walls users say on Google Play

★★★★★

Arbitrary Renaissance

Excellent mechanics, and an incredibly rich puzzle set. You get 90 puzzles for free, but there are weekly puzzles as well, so you're always getting a little bit of new free content. There are hundreds of level packs beyond the free ones, and they are certainly worth their cost, especially considering that this app is completely ad-free. I would 100% recommended this to anyone who enjoys Nurikabe, or who wants to find out what this little number game is like.

★★★★

A Google user

Great logic puzzle .. good mental exercise. User interface is intuitive. Would recommend to people who enjoy puzzle solving.

★★★

A Google user

Love nurikabe, I can appreciate the monetization, but I want a way to mark a square so I can explore whether it works or not if I am unsure, and this doesn't have that, like the other apps with nurikabe I have tried. Sadly, this gets an uninstalled because I can't solve the harder puzzles without a toll like that.

★★

A Google user

On my phone, the game seems to have a bug in which it doesn't recognize when the puzzle is actually solved. After completing the first puzzle, when nothing happened, I actually clicked [solve] to see if I'd missed something, and I hadn't. The puzzle cleared out after that. I tried the next puzzle, and the same thing happened. Instructions seem clear enough, so I'm left to conclude that it's a bug. It doesn't seem very challenging for me, anyway.

★

A Google user

Game/Computer Program does not recognize (alternate) correct answers that are not same as the program's single correct answer. UPDATE: Conceptis- On some of the puzzles there can be more than one solution even though there is only one correct solution according to your program. The rules were followed. I tested this theory.