Belt & Box
Build. Route. Deliver.
A puzzle game about conveyor belts. Lay the belts, press Run – and watch the chaos turn into a machine that hums.
The first two worlds, free in your browser. The full game is coming to iPhone, Android and Steam.
How it works
- 1
Draw belts
Drag a finger from the supplier to the dock. The belts know which way to run.
- 2
Press Run
Boxes roll, mills grind, ships wait for no one. Jammed? Stop, fix, run again – it takes a second.
- 3
Deliver the order
Fill every order for one star. Do it faster, leaner or neater for three.
A look inside
The worlds
6 worlds, 113 levels – so far.
-
1
The Garage
Where it all begins: belts, corners and a fixed old belt nobody dares to move.
15 levels In the demo
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2
The Food Factory
Mills and a bakery: turn wheat into flour into bread before the store opens.
15 levels In the demo
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3
The Steelworks
Splitters divide the line. Ore, furnaces and gears, shared out to the exact bar.
15 levels
-
4
The Harbour
Ships sail on a timetable. Stock up in time – the tide doesn't wait.
15 levels Full game
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5
The Airport
Sort suitcases by tag, feed the planes and catch the ones arriving.
20 levels Full game
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6
The Flower Market
Cut flowers wilt within seconds. Dig tunnels, keep the lines short and deliver every bloom fresh.
20 levels Full game
Belt & Box: moving things from somewhere to somewhere else since recently.– Director Pemberton
Complaints, praise and ideas for further efficiency gains: pemberton@beltandbox.com. The Director reads every memo. Eventually.
Who makes this
Hi, I’m Heinzer. I taught myself to program as a teenager, studied maths, spent seven years as an IT consultant and have been a machine learning engineer for nine. Making games was always the hobby dream, but for a long time I lacked either the skills or the nerve to begin.
AI made the first step small enough. I tried a few things and dropped them, until I thought of making games for my children. My son loves to build and to solve puzzles, and from that came Belt & Box, now my son’s favourite game.
The game is made with AI tools: Claude Code and Codex write much of the code, ChatGPT draws and ElevenLabs makes the sounds. I steer all of it, the design, the decisions and the quality bar, with sixteen years of software and machine learning experience behind them.
– Heinzer, heinzerlabs
Tell me when it’s out
The Director writes once, when there is something to play: Android first, iPhone and Steam later. No news, no schedule. The circular is written in English.
What’s next
- Can’t wait for the rest? Apply to the Director for the whole game so far: pemberton@beltandbox.com. Worthy candidates receive a key. Applications are reviewed with the utmost seriousness.
- More worlds are on the drawing board – the design department is sketching furiously.
- Apps for iPhone and Android, and a version for Steam.
- Your play helps: anonymous counts of tries per level tune the difficulty. You can switch it off in the game’s settings. Privacy