So you’ll race around, a tiny little spaceman in a huge metal factory-fortress, desperately wrenching bits of belt or misaligned arms out from the impossible circuit, trying to set up parallel paths or complex, automatic resource dividers to keep everything cleanly compartmentalised. It will be the most important thing in the world for ten minutes, these small, precise tweaks which only you could possibly understand, because you’re the one who built this fantastic contraption, and then it will be solved and you’ll forget and go off to build something else.

– how do I make all this fit? How do I lay down this new assembly line without having to demolish everything I’d already built? How can I make sure this one belt carries the exact ratio of copper and iron that the foundries need? Even if the outcomes are essentially the same as the process which led to them, progress is not a given; it’s achieved by forethought and analysis, not simply by perseverance. This is a puzzle game as much as anything else – and consequently similar to other games such as Infinifactory, which I have not played.