Features:

Instalation and usage Wizard Guide
Autonomous seed-driven generation: a connected, reachable labyrinth of rooms and tunnels from one seed (deterministic).
Organic real-rock walls via fractal (fBm) noise, not metaball blobs.
Multi-level caves with walkable, slope-limited ramps.
Seamless tiling for huge, crack-free caves.
Guided-random: a spline steers the random layout.
PCG-native: 11 composable PCG nodes; Floor/Wall/Ceiling scatter points for Epic's Static Mesh Spawner.
Async, watertight Marching Cubes meshing (smooth normals, triplanar UVs).
Live editor preview actor: real-time editing, room lights, decoration scatter, Shift+R regenerate.
Full C++ source, 59 automation tests, performance suite.

Code Modules:

Subterra - Runtime.
Number of Blueprints: 1
Number of C++ Classes: 28 (16 UObject classes, 11 IPCGElement classes, 1 module class; plus core math structs/namespaces)
Network Replicated: No

Supported Development Platforms: Windows

Supported Target Build Platforms: Win64.

Important/Additional Notes:

Decoration uses Instanced Static Meshes - those materials need "Used with Instanced Static Meshes" enabled. Nanite supported.
Mesh extraction runs async off the game thread.

Overthink Studio

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