70 colorable grunge overlay objects for Dungeondraft, and 13 grunge Patterns. Each object is about 3 or 4 grid squares wide.
Using grunge overlays (or overlays in general) is great for adding depth to your maps, you can use that underrated technique for a lot of different things.
Little tip: white patterns and assets from this pack go remarkably well on water!
You can of course lower the alpha value of the objects and textures to blend them better in you maps 🙂