From publisher blurb: The Sewers is a new geomorph style for Dungeons in Blue. Each tile in this collection has slimy and foul sewer lines running through it's corridors and chambers. Every dungeon needs sewers; where else are the doughty adventurers going to fill their quota of giant rat ears? The Dungeons in Blue series brings classic blue maps to the virtual tabletop! These ready-to-fill maps are packed with rooms, corridors, pits, and caves; all judiciously sprinkled with tricks and traps. Every geomorph tile seamlessly connects to every other tile in the series, providing the megadungeon builder tremendous freedom and flexibility. This product includes twelve unique map tiles rendered at 100px per five-foot square. Each tile contains sewer lines and pools, and may also contain grand hallways and caverns, and cross-tile water features. The set includes two versions of each tile, one for players and one for GMs. The GM's version shows additional features, tricks, and traps. This set includes (SE17-SE40): Six 50x100 foot tiles. Six 100x100 foot tiles. A map legend image detailing all map markup. A one-third scale summary map showing all tiles. A short readme PDF. All maps are ready-to-use PNG-format files compatible with most virtual tabletops. Use them as-is, or combine them into larger maps using your favorite image processing software.