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.
The trailer
The video loads from YouTube only when you press play. Privacy
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.
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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
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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 can help: if you allow it, the game counts tries per level to tune the difficulty. You can change your mind any time in the game’s settings. Privacy