Ultimate Dungeon Terrain for D&D & Pathfinder Adventures

Build immersive dungeon crawls, monster lairs and underground adventures with Dungeon Blocks – The Ultimate Dungeon. This modular terrain collection provides everything needed to create corridors, chambers and encounter spaces for Dungeons & Dragons, Pathfinder and tabletop RPGs.

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Built for Stability, Compatibility and Endless Expansion

The XL Lock Grid forms the core foundation of the Dungeon Blocks terrain system, providing a secure and reliable base for larger terrain layouts. Designed to work seamlessly with our improved V2 connection system, these grids help reduce movement and rattling during play while allowing terrain pieces to connect quickly and consistently.

Manufactured in durable PLA, the grid is lightweight, strong and designed to withstand regular tabletop gaming. Each square is sized to accommodate standard 25mm miniature bases, including corner positions, making it easy to position miniatures naturally throughout your terrain layouts.

Compatible with the wider Dungeon Blocks range, the XL Lock Grid can be used as the starting point for everything from sprawling dungeon complexes and medieval settlements to graveyards, temples and sci-fi environments.

Features:

  • Durable lightweight PLA construction
  • Improved V2 connection system
  • Designed for standard 25mm miniature bases
  • Compatible with Dungeon Blocks terrain sets
  • Easy to expand and customise
  • Ideal for D&D, Pathfinder and tabletop wargaming

If you have any questions about compatibility, layouts or building your ideal terrain setup, please don't hesitate to get in touch — we're always happy to help.

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Dungeon Blocks  |  SKU: XLGRID

Main Structure blocks for Highlands tiles

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