Errant Biomes is a comprehensive solution for scattering objects and foliage across large-scale environments, allowing for the use of procedural generation while maintaining full artistic control. The plugin seamlessly integrates with the Unreal Editor and all of its systems, while providing all the necessary tools, systems, and organization features required to populate vast worlds.

Designed with artists in mind, Errant Biomes requires only basic technical knowledge in order to get impressive results. It is optimized for teamwork and concurrent work in large teams and is trusted by well-known studios and indie developers worldwide. 

The plugin is highly stable and performant and even integrates with PCG for an extra layer of low-level control.

Sign up for a free 30-day trial on our website.

Key aspects:

• Spawns any type of objects - foliage, grass, meshes, VFX, blueprints, sounds, light sources, or gameplay elements
• Fully programmable spawning logic via the Material Editor.
• Empowers artists by mixing procedural generation with hand-painted masks
• Optimized for large maps (> 10x10 km)
• 10-100x faster than other solutions thanks to GPU acceleration
• Designed for teams and concurrent work
• Trusted by studios and indie developers around the world
• Supports Nanite, World Partition, Data Layers, HLODs
• Runtime generation for efficient grass and dense foliage spawning
• Intuitive and well-organized UI (new editor mode)
• PCG Integration - apply PCG graphs on top of Biomes output
• Landscape adjustment under spawned objects

Control generation with:

• Landscape weightmaps
• Hand-painted masks (using a dedicated tool)
• Textures and splatmaps
• Procedural logic (ex. noise)
• Masks from Errant Landscape Stamp Brushes
• Interspecies dependencies
• Priority-based overlap removal

More info:

Errant Worlds Overview Video

Discord

Documentation

Our Website

Biomes, sub-biomes, and species

Our assets are intuitively organized into biomes, sub-biomes, and species. Biomes reflect a region's climate, while sub-biomes capture unique environmental features like rainforest, field, or grassland. This streamlined organization allows for easy control of generation at any scale, from broad strokes to fine-tuned details.

What our customers say:

​"Errant Worlds fills a big gap in the current Unreal toolset. Making populating and generating large worlds very easy and intuitive. The tools are artist orientated, iterative, and easy to setup. The biggest benefit for me is that everything is integrated and updated in engine, allowing you to see modifications on the fly in the level."

Aten Skinner, Principal Environment Artist at SUMO Digital