Logic Puzzlesby Spark & Spiral

Logic puzzles

  • Aquarium
  • Binary Sudoku+
  • Color Flood
  • Crowns
  • Cryptograms
  • Daily Logic Puzzles
  • Dominosa
  • Dot Stream
  • Futoshiki
  • Galaxies
  • Calcudoku
  • Kurodoku
  • LITS
  • Logic Grid Puzzles
  • Mine Finder
  • Mosaic
  • Nonograms
  • NoriNori
  • Pipes
  • Renzoku
  • Skyscrapers
  • Slant
  • Sudoku
  • Thermometers
  • Yin-Yang
All logic games →

Word games

  • Final Phrase
  • Medieval Word Twister
  • Word Wheel
All word games →

Card games

  • Euchre
  • Solitaire Pro Collection
All card games →

Printable

  • This week's puzzle pack
  • Logic grid puzzles
  • Crowns
  • Binary Sudoku
  • Aquarium
  • Sudoku
  • Tent Logic
  • Nonograms
  • Calcudoku
All printable puzzles →
♛ Daily CrownsAppsBlogAboutPlay free
♛Daily CrownsToday’s free puzzle, plus unlimited play
AppsBlogAboutFAQContact
iPhone, iPad & Android

Mobile Apps

Take our challenging puzzle games with you wherever you go! Download our mobile apps from the App Store or Google Play Store.

Daily Logic Puzzles mobile app icon

Daily Logic Puzzles

★ 4.610K+ Downloads

One app, eight daily logic puzzles. Fresh challenges every day including Crowns, Binary Sudoku, Mine Finder, Sudoku, and more. Minimal ads, just satisfying solves.

View Details →
Download on the App StoreGet it on Google Play
Crowns Logic Game mobile app icon

Crowns Logic Game

★ 4.8140K+ Downloads

The ultimate puzzle game where each row, column, and color region must contain exactly one crown, and crowns cannot be placed in adjacent cells. Features over 1,500 puzzles!

View Details →
Download on the App StoreGet it on Google Play
Binary Sudoku+ mobile app icon

Binary Sudoku+

★ 4.720K+ Downloads

Create perfect symmetry by placing tiles strategically on the board in this challenging puzzle game. Test your spatial reasoning across 1,300+ levels!

View Details →
Download on the App StoreGet it on Google Play
Aquarium Logic Puzzle mobile app icon

Aquarium Logic Puzzle

★ 4.64K+ Downloads

A captivating logic puzzle game where you strategically fill aquariums to specific water levels, guided by numerical clues. Beautiful animations and challenging puzzles!

View Details →
Download on the App StoreGet it on Google Play
Color Flood: Logic Puzzle mobile app icon

Color Flood: Logic Puzzle

5K+ Downloads

A colorful puzzle game where you connect matching colors while filling the entire board. Create beautiful patterns while exercising your logical thinking!

View Details →
Download on the App StoreGet it on Google Play
Dot Stream mobile app icon

Dot Stream

★ 4.63K+ Downloads

Connect dots to create patterns and solve puzzles in this elegant logic game. Draw paths through numbered dots to fill the entire grid!

View Details →
Download on the App StoreGet it on Google Play
Logic Puzzles

Free, fair, beautifully made logic puzzles. Made in Canada by Spark & Spiral.

Get the free Crowns puzzle app:

Download on the App StoreGet it on Google Play

Popular Puzzles

  • Crowns (Daily + Unlimited)
  • Sudoku
  • Nonograms
  • Calcudoku
  • Mine Finder
  • Logic Grid Puzzles
  • Cryptograms
  • Tent Logic
  • Futoshiki
  • Printable Puzzles

Quick Links

  • Logic Games
  • Word Games
  • Card Games
  • Blog
  • Press
  • About
  • Contact
  • FAQ
  • Sign in

Legal

  • Privacy Policy
  • Terms of Service
  • Delete account

© 2026 Spark and Spiral Software Inc. All rights reserved.

Every puzzle solvable by logic alone.