Modular Sewer System Pack

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This pack contains various building pieces, props, decals, particle effects, spline meshes, lights and decorations for creating a sewer environment.

Included is a set of generic building blocks (walls, floors, raised pavements, stairs), 3m wide arched tunnel and 4m wide round tunnel pieces, that use materials with vertex color masking for creating varied surface types (dirt, leaks, damage, paint, grime), catwalks, gates, ladders, railing, 5 types of doors and 2 types of heavy sewer seals.

There are two tiling water master materials - transparent sewer water with floating grime, and opaque dense sewage.

There are 3 types of pipes, intersections, handles, 7 types of wires with spline mesh variants.

Also provided are some props and various decoration: boxes, crates, barrels, maintenance props, fuseboxes, 13 types of wall signs, brick and concrete rubble, piles of trash and hanging ceiling scum, waterfalls, water leaks and splashes, fog and steam fx, various grime and damage decals.

There are 13 types of lights, with a blueprint for each type.

Technical Details


  • Various modular building pieces, including 2 type's of tunnel sections
  • Flexible master material, with 4 surface types and vertex color masking support
  • 3 types of pipes, intersections, handles and spline meshes.
  •  7 types of spline mesh wires
  • Multiple types of water materials, waterfall meshes, splashes, drips and spreading water effects
  • Brick and concrete rubble
  • Trash piles, dirt and hanging ceiling grime
  • 13 signs and warnings
  • 3 types of ladders and railings
  • 24 props
  • 13 types of lights, and light blueprints
  • 2 types of grates
  • Modular catwalks
  • 5 types of doors, 3 doorframes, 2 gates, 2 sewer seals
  • 4 grime decals and 12 large damage decals and 9 small ones
  • Decal blueprint for creating painted wall text in two fonts with varied degree of damage
  • Fog and steam leak particle effects

Texture Sizes:

  •  4 4096x4096
  • 242 2048x4096
  •  22 1024x1024
  • 1 256x256

Collision: Yes, custom for level geometry and large props, auto-generated for small props and decorations, where appropriate

Vertex Count: Varied

LODs: Auto-generated

Number of Meshes: 269

Number of Materials and Material Instances: 19 Master materials, 90 Material Instances

Number of Textures: 180

Supported Development Platforms: Windows, Mac, Linux

Supported Target Build Platforms: Desktop

Important/Additional Notes: Some materials utilize vertex painting. Tiling materials: Red - Dirt, Blue - Damage, Green - Overlay (Paint/Grime). Waterfall: Red - Opacity, Blue - Scale. Trash: Red - Opacity, Blue - Texture Set.


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  • Unreal Engine
  • 4.26
  • 103344