PCG Extended Toolkit (PCGEx)

Node & feature ecosystem for advanced PCG in Unreal Engine
Graph theory, pathfinding, spatial queries, asset management, and more.

Documentation • Installation • Changelogs • Discord • Support on Patreon

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What is PCGEx?

A comprehensive node ecosystem that extend Unreal Engine's PCG framework with structure, connectivity, and spatial intelligence.

Build graph networks from points. Pathfind through them. Compose filters and heuristics as reusable sub-nodes. Stage assets. Sample across datasets. Manipulate paths. Streamline the sorting, fusion, partitioning, and attribute work that complex workflows demand.

PCGEx is fully documented and production-ready.

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Getting Started

• Getting Started / Installation / Epic' FAB
• Working with PCGEx
• Node library + Example Project

AI Assistants : Gitbook llms.txt and llms-full.txt has you covered.

Support

• Documentation • Everything is there.
• Discord Server • Community support

PCGEx is actively developed for the latest 5.x version and most updates are backported to 5.x-1 if Epic's APIs aren't too widely diverging.

PCGEx Pro

PCGEx also has a small ecosystem of more uniquely targeted plugins that build on top of the core plugin, under the "PCGEx Pro" umbrella :

→ PCGEx + ZoneGraph • Generate ZoneGraph roads & polygons from clusters
→ PCGEx + Valency • Constraint solving pipeline (WFC + free-form connector grammar)
→ PCGEx + Cluster Sketch • Create clusters by hand with per-element data layers

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Branches

- main
Compiles against latest launcher engine binaries
(this an unstable branch)

+ 5.x
Compiles against that version of the engine
(these are stable branches)

! `FAB-5.x`
Served to FAB and have some features disabled
(no PCHs, no tooling/cherry-picking scripts);
they can be unstable during submission windows.

Note that PCGEx is actively maintained only for 5.7+.

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Support the project

PCGEx is free and open source under the MIT license. If it's useful to your work, consider:

• ⭐ Starring the repository
• 💬 Joining the Discord community
• ❤️ Supporting on Patreon

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Acknowledgments

Supporters

Check out the Supporters page on Gitbook!

Third-Party Libraries

• delaunator-cpp → Fast Delaunay triangulation
• Clipper2 → Polygon clipping and offsetting (modified C++ port, v2.0.1) by Angus Johnson

Special Thanks

@MikeC, @TyrannicGoat, @EdBoucher	Reckless experiments, feedback, and suggestions that shaped the plugin into what it is today
@Amathlog	Epic Games staff, invaluable PCG framework guidance
@Erlandys	Advanced C++ insights
@Syscrusher / Sine Nomine Associates	Linux support
@staminajim, @MaximeDup, @EmSeta	macOS compatibility

And all the contributors who make this project better! ❤️

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License

MIT License • Free for personal and commercial use. Attribution appreciated but not required.