Millrace: Tile Delivery Puzzle
64 forged levels, one inlet
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Sixty-four forged levels. One inlet, one exact target, one move budget. Every level was found by search and proved solvable by an automated solver before it shipped.
Sixty-four levels. One inlet. Nothing is random.
Millrace is a delivery puzzle. Each level hands you a fixed board, a queue of tiles you can see in advance, and a move budget. Tiles arrive one at a time at a single marked inlet on the edge of the grid. Your job is to build one exact value on one marked cell — and to get it there before the budget runs out.
Two ways to lose, and both are yours to avoid:
• Slide a tile over the inlet and the next arrival has nowhere to land.
• Overshoot the target — build a 128 when the level asked for a 64 — and that value is gone for good.
— THE CAMPAIGN —
Six chapters, and a difficulty curve that is measured rather than claimed:
Warm-up · Tactics · Pressure · Precision · Deep Water · Mastery
Every level was found by search, not written by hand, and checked by an automated solver before it shipped. The shortest solution is known exactly, each chapter is pinned to one depth, and levels a thoughtless policy could stumble through are thrown away. If a level is in the app, it has a real answer and no cheap one.
— FREEPLAY —
One tap from the level list: an endless board with no goal and no move limit. Slide, combine matching numbers, and see how far it takes you. Personal bests, a daily board that is identical for every player in the world, and streaks. Game Center leaderboards and achievements if you want them.
— HELP WHEN YOU WANT IT —
• Hint suggests a strong next move and says why.
• The Coach watches a finished game and names one habit worth fixing — corners, crowding, or ordering. It never interrupts play, and you can switch it off.
— SEVENTEEN THEMES —
A real 3D board, not a picture of one. Tilt your phone and the light travels across ceramic, glass, walnut, paper, brushed metal and neon. Classic is free; the rest live in optional packs.
— FAIR, AND FINISHED —
No ads. No subscription. No account. No energy meter. Fully offline, on a plane or underground. Undo tokens give you a second chance and one arrives free every day; extra tokens and theme packs are the only things that cost money, and you never need them.
Available in 40 languages.
—
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Your solves finally leave a mark.
The campaign now has ten new Game Center achievements and its own leaderboard, Levels Solved, so every level you crack counts toward something you can show off.
Claim each chapter as you clear it, from Warm-up all the way down to Mastery, with a progress bar that fills as you go. Then go after the hard ones. Perfect Line asks you to solve a level in the fewest moves it allows, and because a solver proved every level, that number is exact, not a guess. Unaided asks you to get there without a single hint.
Already deep in the campaign? Sign in to Game Center and every level you've solved counts straight away.
One achievement is hidden. You'll know it when you earn it.
The developer, Antti Aittamaa, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Antti Aittamaa
- Size
- 308.1 MB
- Category
- Board
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 33 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Complete Collection $5.99
- 50 Undos $2.99
- Winter Pack $1.99
- Support the Developer $1.99
- 200 Undos $5.99
- 10 Undos $0.99
- Designer Pack 2 $1.99
- Designer Pack 1 $1.99
- Summer Pack $1.99
- Copyright
- © 2026 Aittamaa
