Structure Shield
by Silvertide
Structure Shield stops players from breaking or placing most blocks inside generated structures, so ruins and dungeons stay as their builders intended.
What it does
Inside structures, players are blocked from breaking and placing most blocks. The restriction is data-driven: a data pack chooses which structures are protected and which block types stay editable. Blocks are grouped with block tags, and a structure joins the protected set through a structure tag placed in a data pack folder for the mod.
The mod is aimed at players who find structures too quick to clear. Blocks that are needed for a room to work or a path to stay open can no longer be removed, and doorways cannot be sealed off to trap a player or block monsters. Courses built from placed platforms can also be enforced, so jumps and parkour sections keep their difficulty. The default data pack covers vanilla structures and is built with vanilla blocks in mind.
Structure Shield runs on Forge and NeoForge for 1.20.1 and 1.21.1. The server and every player need the mod installed. The code is under the Creative Commons Attribution 4.0 license, and the mod is not open source. The author plans to backport the mod to 1.20.1 on NeoForge.
Key features
Protected structures
Breaking and placing most blocks inside a structure is prevented, and structures can be chosen in a data pack.
Block tags for exceptions
Allowed block types are added through block tags, so specific blocks stay editable inside protected structures.
Structure tag selection
A structure tag in a data pack decides which structures are protected, giving full control over which places change.
Enforced jumps and courses
Parkour sections and platform courses keep their difficulty, since blocks needed for the route cannot be removed.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Harder dungeon exploration
Server owners can keep dungeons and ruins from being cleared in a few minutes by preventing blocks that open shortcuts from being broken.
Building interesting interiors
Mapmakers can design rooms and courses that remain as built, with doors and platforms that players cannot remove.
Who it’s for: Server owners and adventure map makers who want structures to stay challenging for later players, and players who prefer structures to be explored rather than trivialized.
Questions
Does Structure Shield need to be installed on both sides?
Which loaders and versions does Structure Shield support?
How does a server owner choose which structures are protected?
More from Silvertide
What the author says
Structure Shield prevents players from breaking or placing blocks inside structures. It is fully data-driven and configurable, allowing you to choose which structures are protected and which blocks may be broken or placed while inside protected structures. Now players can't trivialize structures or completely destroy…
Official listing
- Modrinth page
- modrinth.com/mod/structure-shield
- Owner
- Silvertide
- Published
- 2025-12-22
- Updated on Modrinth
- 2026-09-15
- Facts verified
- 2026-10-15