Chip Builder

Chip Builder is a puzzle game built around a single question: how does sand become a working processor? Developed by bitheap GmbH in Zürich, it presents digital logic as a sequence of hands-on construction steps rather than a lecture. Players begin at the physical level and gradually assemble the building blocks of modern computing inside a story-driven campaign.

The core loop asks you to wire transistors into logic gates, combine gates into adders and memory, and connect those parts into a CPU you then program yourself. Later chapters extend the journey to the fabrication plant, where your design becomes a real chip, followed by designing an AI accelerator and finally running ChipCorp as its CEO.

The site also documents the real-world process behind the game, walking through ten steps from quartz sand and electronic-grade purification to crystal pulling. This reference material helps players connect in-game puzzles to actual semiconductor manufacturing, making the experience useful for curious beginners and students encountering logic design for the first time.

Because the game is rated PEGI 3 and ESRB Everyone and runs on Windows, it is accessible to younger players and classroom use. It is available on Steam and the Epic Games Store. Players who prefer guided discovery should follow the story chapters in order; those with prior knowledge can jump ahead to CPU programming and fab stages.

Overall, Chip Builder is a gentle on-ramp to digital logic and chipmaking, pairing