The goal is to place a skyscraper on each space of the NxN grid. The height of the skyscraper must be from 1 to N.

Much like sudoku, each row and each column must contain only one skyscraper of any given height.

The numbers on the outside of grid represent the number of skyscrapers someone could see standing there.
Taller skyscrapers hide shorter ones.

Four levels of difficulty with grids ranging from 3x3 up to 8x8. Most grid sizes and difficulty contain 500 puzzles for a total of almost 10 000 puzzles.

Smaller grids are great for younger players or if you just want a quick game. Larger grids will provide a challenge to even the best puzzle solvers.

What’s New

Version 2.5

Update to support iOS14

Ratings and Reviews

3.6 out of 5
5 Ratings

5 Ratings

Penguin463 ,


this game is really fun! I first played it in school (not on an app) and I loved it. I was really happy when I found out there was an app for it! it’s a really great game to just pass the time. the only issue, in my opinion, is how you have to click the number all the in the top right corner and then click on the boxes. if you’re on a roll finding all the numbers, you have to keep clicked the number in the top right then clicking the box and back and forth and back and forth again. it’s just really annoying to do that. I wish you could click the box first and then click a number that shows up when you click the box. other than that, this is a great app that I would totally recommend!

MrDLoomis ,

Very good.

Very good version of a classic game.

Only complaint is that you should be able to just tap on the boxes to cycle through the towers from blank to tallest. Having to first tap a number at the top, then tap the grid to place the tower is very old school programming. iPads and iPhones are made to be tapped. 4 stars for now, 5 if that feature is added.

a homeschooler ,

Good with one flaw

I like this game as a paper and pencil game so I looked for an app to improve and play on the fly. Great simple interface. There’s just one major issue... there’s no way to undo or erase a move. You can overwrite it, but if you accidentally hit the wrong square and you don’t have an overwrite yet, there’s nothing you can do. I generally just ditch it and play a new board, but after playing for awhile, I can already see this is going to be a major headache on harder puzzles.

App Privacy

The developer, Vincent Lewis, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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