HOLON is a factory game about making shapes and sending them to a Hub. You take squares and circles from the land, run belts, and fill the current order. When a shape needs more than a straight line, you place a Nest, step inside, and do the work there.

A Nest is a small factory you can enter. Stack shapes. Paint them. Cut them. Turn them. Belt the result back out through the rim. Green is input. Red is output. Processing buildings only run in a Nest. Outside stays belts, extractors, and space.

Hub orders unlock new tools and ask for harder shapes. You start pulling color, then cutting, then burning holes. The map does not end. Walk out, find the patch you need, and bring it home.

When a Nest does the job, save it and place it again. The whole room becomes one building. Later you can put smaller Nests inside a larger one. Copy what works. Raise output as the Hub asks for more.

There is no combat and no clock. Build as fast or as slow as you want. The next shape is the pressure, and how small you can make the factory that produces it.