Block Tower Sort

Block Sorting Puzzle Game

Mobile game

Overview

Block Tower Sort is a satisfying puzzle game where you sort colored blocks into matching towers. Each puzzle is randomly generated and guaranteed to be solvable — so you'll never get stuck with an impossible challenge.

Rebuilt from the ground up as a native iOS app in Swift, Block Tower Sort features snappier animations, lower battery usage, a space-themed background, and detailed session tracking. Inspired by the classic puzzle game Tower of Hanoi, it's plain and simple fun.

Installation

Open the App Store

On your iPhone, open the App Store.

Search for Block Tower Sort

Search for "Block Tower Sort" or tap the download link on our website.

Download and Play

Tap "Get" to download. Open the app and start playing immediately — no sign-up needed.

Note

As of March 2026, Block Tower Sort is only available on iPhone or iPad.

Game Rules

The goal is simple: sort blocks of the same color in order six to one

  • Begin — At the start of each game, blocks are randomly sorted into mishapen towers
  • Move — Only the top most block on a tower can be moved
  • Place — You can place the selected block on any block of the same color with a higher number or an empty space
  • Lock — If you place blocks of the same color in the correct order, they become locked and move together for the rest of the game
  • Win - To win the game, sort each color of blocks in order from six to one
Tip

Every puzzle is guaranteed to be solvable. If you get stuck, use the unlimited undo feature to try a different approach.

Controls

Block Tower Sort uses simple tap-based controls.

  • Tap a tower — Selects the top block, lifting it up
  • Tap another tower — Places the selected block on the tapped tower (if the move is valid)
  • Tap the same tower — Cancels the selection and puts the block back
  • Undo button — Reverses your last move

Scoring

Your score is based on how many moves it takes to sort all the blocks. The game screen displays your current move count and your all-time fewest moves for that difficulty — try to beat your personal best.

For a full game history with detailed stats, see Session Tracking.

Undo Moves

Made a wrong move? No problem. Block Tower Sort features unlimited undo — tap the undo button to reverse your last move, and keep tapping to undo as many moves as you want. You can even undo all the way back to the starting position.

Puzzle Generation

Every puzzle in Block Tower Sort is randomly generated at the start of each game. The generation algorithm guarantees that every puzzle has at least one valid path to victory, so you'll never encounter an impossible board.

If you want a fresh challenge, simply start a new game to get a completely new puzzle.

Settings

Access game settings and links from the hamburger menu in the top corner of the screen.

  • Session tracking toggle — Enable or disable session tracking (off by default)
  • Links — Quick access to support, privacy policy, and other app links

Session Tracking

Enable session tracking from the settings menu to log every game with detailed stats.

  • Detailed stats — Each session tracks moves, undos, difficulty, duration, and personal bests
  • Filter by difficulty — View your sessions filtered by difficulty level
  • Win rates — See your win rate breakdown across difficulty levels
  • Export to CSV — Export your full game history as a CSV file for backup or analysis
  • Off by default — Tracking is opt-in and can be toggled on/off anytime via the settings menu
  • Stored locally — All session data is stored on your device and can be cleared at any time

Beginner Tips

  • Keep empty spaces available — Empty spaces act as temporary storage. Try to always have at least one empty space
  • Focus on one color — Instead of moving blocks randomly, pick one color and work toward completing its tower first
  • Look before you move — Scan the board before making a move. Sometimes the obvious move isn't the best one
  • Use undo freely — Undo is unlimited and there's no penalty. Experiment with different approaches

Advanced Strategies

  • Plan 3-4 moves ahead — Think about where each block will end up, not just the next move
  • Avoid creating "dead" towers — A tower with mixed colors at the bottom is harder to fix later
  • Prioritize freeing buried blocks — Identify which blocks are trapped under the wrong colors and work to free them
  • Use the "staging" technique — Temporarily move blocks to empty space to access blocks deeper in the stack

Privacy & Data

Block Tower Sort respects your privacy completely.

  • No account required — Play without signing up or providing personal information
  • Local data only — Your scores and game progress are stored on your device
  • No ads — The game contains no advertisements
  • No tracking — We don't collect any usage data or analytics
  • No internet required — Play completely offline

Common Issues

A block won't move to a tower

The selected block can only be placed on towers where the top block is the same color with a higher number, or on empty space. If neither condition is met, the move won't be allowed.

I think the puzzle is unsolvable

Every puzzle is guaranteed to be solvable. If you feel stuck, try using undo to go back several moves and try a different approach. Sometimes starting over with a fresh strategy can help you find a solution.

My scores reset after an update

Score data is stored locally on your device. If you reinstalled the app (rather than updating), the data may have been cleared. Updates from the App Store preserve your data.

Contact Support

Have a question or found a bug? We'd love to hear from you.