Voxel Plugin

Voxel Plugin is Unreal Engine technology for generating interactive terrain, best suited to developers who want runtime world changes and PCG workflows. Pro adds node-based Voxel Graph authoring, but the lack of cubic terrain and baked-world generation narrows its fit.

Overview

Version 2 builds terrain from stamps that generate either 2D height data or 3D volume data. Procedural output is deterministic for the same seeds, a useful property when a project needs reproducible worlds. Runtime changes are described as reversible and non-destructive, which suits terrain that should respond to play without making edits permanent.

This is a focused terrain tool rather than a fit for every world-building approach: Voxel Plugin 2 does not support cubic terrain or static, pre-baked world generation. Its documented release targets Unreal Engine 5.6 and 5.7, and the plugin is still actively being developed, so users should be prepared for bugs.

Key features

Terrain authoring and rendering

Stamps provide the basis for both heightfield and volumetric terrain generation. Nanite is the main rendering pipeline, with tessellation and displacement supported in that pipeline. Voxel Graphs add node-based control over generation, but they are not part of the Free plan; graph-driven workflows therefore require Pro or a Custom License.

Runtime editing and PCG

Voxel terrains and metadata can be queried from Unreal Engine's PCG framework, and PCG graphs can call Voxel Graphs. That makes the plugin a stronger fit for teams building procedural terrain into broader PCG workflows. It does not directly generate or manage foliage interactions; those workflows use PCG instead.

Voxel Plugin 2 is downloadable through the Voxel Plugin Installer or from GitHub. Support is directed through Discord, with Discord support included in Pro; Custom License includes Slack access.

Pricing

Voxel Plugin uses a freemium model. Free costs nothing and includes commercial use and full source code access. Its main trade-offs are the absence of Voxel Graphs and no access to Voxel Plugin 2 previews, so it suits users who can work without graph-based generation.

Pro (for budgets <$200k) costs $349, paid once. It includes commercial use, full source, Voxel Graphs, Discord support, team sharing, and access to Voxel Plugin 2 previews. The license is not for project budgets over $200k; it is the relevant paid option for eligible projects that need graph authoring or preview access.

Custom License has custom pricing and includes access to Voxel Plugin 2, a support contract, full source, an unlimited budget, and Slack access. It is the option for projects beyond Pro's budget restriction or teams needing a support contract and Slack access.

Platforms

Voxel Plugin is listed for Android, macOS, and Windows, and exports to Unreal Engine. The documented Voxel Plugin 2 release targets Unreal Engine 5.6 and 5.7.

Who it's for

Choose Voxel Plugin if you are building interactive Unreal Engine terrain, need repeatable procedural output, or want terrain and metadata to participate in PCG. It is less suitable if your project depends on cubic terrain, static baked worlds, or foliage workflows handled directly by the terrain tool.

Pros and cons

• Pros: Reversible runtime changes suit worlds that need to react during play.
• Pros: Seed-controlled generation supports repeatable 2D and 3D terrain output.
• Pros: PCG queries and Voxel Graph calls connect terrain generation to Unreal Engine's PCG framework.
• Cons: Free excludes Voxel Graphs, limiting node-based authoring without a paid license.
• Cons: No cubic terrain or static, pre-baked world generation rules out those workflows.
• Cons: Foliage generation and interaction must be handled through PCG, not directly by Voxel Plugin.
• Cons: Version 2 is actively developing and may be buggy.

Alternatives

Browse game map generators for more options. World Machine is worth considering for a freemium terrain tool available on Linux, macOS, and Windows; its Basic plan caps output at 1025x1025 pixels, while Indie is $119 a month.

L3DT may suit projects centered on heightfield and texture maps: its free Standard Edition supports maps up to 2049 × 2049 pixels, and a Professional trial is also offered. SimpleXTerrain is a free, MIT-licensed terrain generation addon for Godot 4 .NET, a different engine ecosystem.

WorldEngine is a free, MIT-licensed world-generation option. Gaea may fit Windows users seeking terrain creation with a Community Edition capped at 1,024 × 1,024 single-build resolution for non-commercial use, or an Indie plan at $99 a month.

Heightmap Level Generator is a free option that needs no installation or account. MapMagic 2 offers a free core asset with map generators; its Biomes and Functions add-on costs $45, paid once for one seat and requires an existing MapMagic 2 installation. Ymir is a free GPL-3.0 world-generation option for Linux and Windows.

Verdict

Voxel Plugin is a strong fit for Unreal Engine developers who need interactive, reproducible terrain and plan to connect it to PCG. Its main reason to choose Pro is Voxel Graph access alongside runtime editing and preview access; look elsewhere if you need cubic terrain, baked worlds, or direct foliage handling, and weigh the still-developing state of version 2 before committing.