Castle Terrain & Fortress Ruins for D&D Adventures

Create mighty castles, crumbling fortresses and ancient strongholds with Dungeon Blocks – Ramparts & Ruins. Designed for Dungeons & Dragons, Pathfinder and tabletop RPGs, this modular terrain collection allows Game Masters to build fortified settlements, defensive walls and ruined battlements perfect for epic adventures and memorable battles.

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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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