From the publisher's website:
Himmelveil Sewers is the foundational, fantasy sewer infrastructure setting you’ve been dreaming of (if you dream of sewers that is...gross!)! A setting of previously unheard of modularity and flexibility, two years in the making!
Utilizing WorldWorksGames exclusive TerrainlinX system, Sewers allows you to create true multi-leveled sewer layouts which sit below Himmelveil Streets! Layouts can be built to any configuration and to any height. This isn’t just static boxes and inflexibly structured building shapes; this is a reusable tool-set and an endless torrent of possibilities in all shapes, sizes and dimensions. And best of all, when you’re done everything stores flat!
It almost seems silly to mention this in passing but Himmelveil Sewers is also automated craft cutter friendly! An industry first for this type of terrain product!
Beneath the bustling streets of Himmelveil is a murky world of twisting tunnels and foul odours. A refuge for thieves, cutthroats and worse and a highway for contraband, this dank domain is home to some of the most deadly dangers any would-be adventurers are ever likely to face. Better keep your wits about you... if the stink doesn't get you, the rats surely will...
The ultimate companion set to Streets of Himmelveil, Himmelveil Sewers contains:
* 11 6"x6" floors in 1", 1.5" and gridless formats
* 8 3"x6" floors in 1", 1.5" and gridless formats
* 12 3"x3" floors in 1", 1.5" and gridless formats
* 6" and 3" balconies
* 6" and 3" balcony supports
* 6" and 3" plug-in railings
* 8 3" walls in flat and our exclusive Anti-Warp format
* 8 6" walls in flat and exclusive our Anti-Warp format
* Short angled wall in flat and our exclusive Anti-Warp format
* Long angled wall in flat and our exclusive Anti-Warp format
* 6 varieties of corner posts
* GSD automated cutting support.