The world is literally alive; an endless expanse of skin, shaped into plains and hills and valleys. There are forests of hairs the size of redwood trees, dry and desiccated scablands, the oily depths of the sebaceous caverns. Somehow humans came to live here, amidst an ecosystem teeming with stranger creatures, all in some way parasitising their immeasurably vast host.

In a distant age, that host was bombarded with meteorites, vast lumps of rock and metal embedded in its flesh, some as large as mountains. Combined with an abundant fuel source in the form of combustible sebum, the inhabitants had everything they needed for an industrial revolution; now train tracks cross the wilderness between settlements, which are sprouting factories and other urban developments.

But this is a dangerous time of rival states, outlaw gangs and hostile species. Added to which is the phenomena of curious fireballs seen falling in the scablands, and rumours of metal things with tentacles that are snatching folks away…