WorldWeaver — AI World Building for Unreal Engine 5

Describe a place — a misty alpine valley, a desert canyon at dusk, a dense forest clearing — and WorldWeaver builds it in your Unreal Engine project: sculpted landscape, scattered foliage, placed features, and a matching sky and atmosphere. Works with UE 5.7–5.8.

It generates a complete scene plan — terrain heightmap, vegetation layers, point-of-interest placement, lighting and post-process mood — then applies it through the Cosindra desktop app and its native UE plugin. Toggle terrain, features, and vegetation independently to preview each layer.

Start from a preset or write your own prompt. Iterate until the world matches what you pictured, without hand-placing a single asset.