Road Builder: Procedural Roads, Junctions & Streets for Blender

Start with one road

Press Add Road and a finished street appears: asphalt, kerbs, sidewalks, markings and crosswalks. Drag any point of its curve and the whole street follows, live.

• 6 presets: Modern Highway, City Street, Country Two-Lane, Dirt Road, Dirt / Mountain Trail and Elevated Bridge, each with its own widths, lanes and furniture.
• Just a curve: every road is an ordinary Blender curve with a geometry nodes modifier, so the usual curve tools all work.
• Instant: the road graph ships prebuilt, so the first road appears in about a second.

Add every detail

Every part of the street is one toggle: kerbs, sidewalks, lane markings, more lanes, crosswalks and stop lines, turn arrows, signs, trees, street lights, drain gutters and bollards.

• Markings: US or UK / Europe styles, lane counts, edge lines, crosswalks, stop lines and turn arrows.
• Street furniture: speed and stop signs, street trees in pits or on the verge, bollards and kerb drain gutters with grates.
• Your own assets: point the trees at a collection of your own and they are placed instead of the built-in ones.

Bend it

Extrude the end of a road with E, or use the Quick Curve Presets: 90° turns, gentle 45° bends and 180° hairpins in one click. Banked curves roll in and back out smoothly.

Lift it

Raise any point and the road climbs with it. Smooth Slope evens out the grade between points, and Flat Mode keeps everything on the ground when you want a 2D layout.

Bank it

Auto-Bank tilts every curve from the design speed and the curve radius, the way real roads are built, up to a maximum angle you set.

Bridge it

Lift a road off the ground and turn on Bridge Support Pillars: hammerhead, flared or simple column piers stand on footings at the terrain, with girders under the deck.

Dress it

Pick the surface of the road, the sidewalk and the kerb from a list of real-world textures, each at real-world scale, with rotation and scale per road.

• Roads: asphalt, worn and damaged asphalt, gravel, tarred gravel, laterite, pebbles, rocky trail, dirt and cobblestone.
• Sidewalks: concrete pavement, square and patterned pavers, hexagonal paving, herringbone and brick.
• Bundled: the Poly Haven textures come with the add-on: nothing to download.

Age it

Wear and cracks, with a crack size, and patch repairs, set per road. Old country lanes and fresh highways from the same road.

Soak it

Turn up Wetness and the road gets darker and glossier, and puddles form and catch the light.

Pave the path

Drop the kerbs and the sidewalks and pick cobblestone, gravel or dirt: the same tool makes footpaths, alleys and park trails.

Light it

Street lights along one side, both sides or the median: cobra-head, dual-mast, decorative and high-mast, with sodium or LED colour. Junctions get animated traffic signals that cycle green, amber and red.

Power it

Utility poles along the verge, with transformers, insulators and one, three or four conductors sagging between them as much as you like.

Join it

Select two roads and make a T-junction, a crossroads with or without signals, or a roundabout. Junctions follow their roads: widen a road and its kerbs, crosswalks and signals rebuild.

Draw it on the land

Pick Surface Draw and sketch on your terrain. Each stroke becomes a clean road that rides on top of the ground, with slopes down to it.

Ship it

Export for Game Engine / Web bakes the road to meshes, bakes the procedural materials to image textures and writes the right file for your target.

• Targets: Godot and three.js (glTF .glb), Unreal Engine and Unity (FBX), generic glTF and OBJ.
• Game-ready: road and props as separate objects, lightmap UVs, and textures baked at 512 to 4096 px.
• Or stay in Blender: Bake to Static Mesh gives you plain meshes to edit by hand.