Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download TaD – Sewer Kit Free.
TaD – Sewer Kit v1.9.2
An Ancient Network of sewer tunnels …
The source of an Undead infestation …
The hiding place an Assassin fled to after murdering the King …
Wherever your adventure takes you next, this complete Sewer Environment package will assist you in building that adventure.
With the unique, large-tile system you will easily build large dungeons in no time.
This package is also available as part of a Bundle Purchase
3DForge Classic Kit Bundle
Other 3DForge Bundles Available
Medieval Village Kit Bundle
1×2048 Atlas texture to lower draw-calls.
Mobile & Desktop All-in-One.
Suitable for Top-Down & FPS games.
DEMO scene files included
Deeper Down – Modern Electric – Thief’s Guild
– 88 – 6m x 6m tiles
– 157 – 10m x 10m tiles
– 1252 Meshes
– 1631 Prefabs
– 81 drag & drop particles effects
– 8 x 6×6 Entrance & Exit tile designs
– 13 x 10×10 Entrance & Exit tile designs
– 102 Modern Electric prefabs
– Electric boxes
– Electric lights
– Steel railings
– Bridges – wooden and brick
– Doorways – wooden and steel
– Huge selection of pillars
– Modular staircases
– Wooden barrels & boxes
– Torches lit & unlit
– Candles lit & unlit
– Wooden furniture * tables, chairs, shelves …
– Campsite items * tents, packs, campfires …
– Pottery selection and more …
Works well with PolyWorld: Woodland Toolkit
* Action RPG Top Down Camera Controller
was used in Top-Down demo
* character not included in package