Trailer | 🔥Quickstart | 📓Documentation | 🎮Discord

Calysto World 2.0 — Artist-Friendly Procedural World Building for Unreal Engine

Build large open worlds faster with Unreal Engine PCG.

Calysto World is a procedural world-building toolkit designed to help solo developers, small teams, and environment artists create large-scale landscapes, forests, biomes, roads, cliffs, and gameplay spaces directly inside Unreal Engine.

Draw your world in the editor, keep full artistic control, and let Calysto generate the repetitive open-world details with a non-destructive PCG workflow.

Designed for World Partition, Nanite foliage, and practical open-world production.

Calysto World is not just a random generator. It is an artist-directed procedural workflow.

Core Workflow

• Draw procedural biomes directly in the world

• Create roads, rivers, lakes, cliffs, and biome areas

• Non-destructive PCG workflow

• Biome priority system for nested biome logic

Open-World Scale

• Designed for World Partition

• Built for large procedural worlds

• Data-oriented workflow

• Supports realistic, stylized, and low-poly projects

Foliage & Spawning

• Full geometry Nanite foliage included

• Skinned Mesh / Nanite foliage support

• Blueprint spawning support

• Spawn level instances with procedural logic

Terrain & Materials

• Terrain auto-material

• Beaches, displacement, Megascans support

• 70 4K heightmap stamps

Calysto World is ideal for:

• Solo developers

• Small teams

• Open-world projects

• RPGs

• Survival games

• Exploration games

• Stylized environments

• Realistic landscapes

• Procedural prototypes

Calysto Ecosystem

Calysto World is part of the larger Calysto ecosystem:

• Calysto Water Engine for upcoming terrain-aware water creation (coming soon)

• Calysto Village for procedural villages and structures

• Calysto Dungeon for dungeon workflows

• Calysto Smart Scatter for advanced scattering workflows

The goal is to build a connected open-world creation ecosystem where tools can share workflows, terrain logic, and procedural data.

🧩Works with any gathering/interaction system: See Nice Interaction System V2 [Tutorial]

🧩Integration with World Protocol heightmaps.

Orbital Market: Link

The stylized asset showcased is Polyart Farm.

PCG is heavily used and evolves a lot between Unreal Engine updates. For this reason, using the latest version of Unreal is recommended to maximize the benefits of Calysto World.

Looking for custom PCG systems or tailored implementation?

📧 [email protected] • 💬 Discord