Choodoku: Train Logic Puzzle

One line. Every passenger.

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

All aboard! Draw one track through every tile and pick up every passenger. A fresh Daily Ride every day, hundreds of routes and cute animal riders. Choodoku is a cozy logic puzzle about a little train with a big job. Lay one continuous track through every tile of the grid, stop at each numbered station in order and pick up every passenger along the way. When everyone's aboard, watch your train chug off on its victory ride! Easy to learn, hard to put down. Every puzzle has exactly one solution, so it's always pure logic, never luck. HOW TO PLAY - Start at station 1 and drag to lay track - Visit the stations in order: 1, 2, 3… - Fill every single tile. No gaps, no crossings - Made a wrong turn? Just drag back or tap Undo FEATURES - Hand-crafted routes that grow from gentle warm-ups to real brain teasers - Daily Ride: a fresh puzzle every day. Keep your streak going! - Endless mode for when you just can't stop - Dozens of cute animal passengers riding in your wagons - Beautiful day and night themes - Hints when you're stuck. Start with 6 free hints and earn more anytime - Achievements, leaderboards and daily challenges with Game Center - Your progress syncs across your iPhone and iPad with iCloud - Play offline, anywhere - Relaxing music and sounds, with no timers pushing you PERFECT FOR Fans of path puzzles, one-line drawing games, number mazes, connect-the-dots and sudoku-style logic, or anyone who wants a calm, clever break in their day. Choodoku is free to play. It includes optional ads, and a one-time "Remove Ads" purchase turns off ads between levels. Hop on and see where the tracks take you. Choo choo!

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New in 1.1.0: - Choodoku now speaks Spanish, Portuguese, German, French and Japanese. Pick your language in Settings. - Share your Daily Ride as a picture. - Usage statistics and crash reports help us improve the game (in Europe only with your consent). - Small fixes and improvements.

Version 1.1.0

The developer, Andrej Mazic, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Location
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Larger Text

    • Dark Interface

    • Reduced Motion

Information

Seller
Andrej Mazic
Size
21.2 MB
Category
Puzzle
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 5 more
  • English, French, German, Japanese, Portuguese, Spanish
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Andrej Mazic
  • Developer Website
  • Privacy Policy

    • Supports

    • Game Center

      Discover new games and play with friends. This game also features leaderboards and achievements.

    More by Andrej Mazic