Plymouth: Anti-Xray
by Ampflower
Plymouth: Anti-Xray is a Fabric server mod that hides ores, buried chests and other valuable vanilla blocks from players who inspect the world for them.
What it does
The mod runs a cache-based anti-xray engine on the server, which keeps precious materials such as ores and buried chests concealed by default until a player is close enough for them to be revealed. Because the engine works on the server side, players join without installing anything, and the environment is server-side only.
Its masking logic is based on single block layers: blocks that do not need special handling are hidden in the usual way. The author notes that the bedrock layer can look unusually flat, since bedrock is treated as a hidden block through the plymouth-anti-xray:operator. Another method for configuring the engine is available, so server owners can choose the approach that fits their world.
Plymouth: Anti-Xray is published for Fabric only, with files for 1.18.1 – 1.19.4 across six game versions. The latest file is 0.2.0+mc.1.19.4 for 1.19.4, released on 2023-03-18. Its source code and issue tracker are public, and the code is released under the Mozilla Public License 2.0, so the mod is open source.
Key features
Cache-based anti-xray engine
A server-side engine that conceals valuable blocks from clients, with its own cache of hidden positions.
Hidden precious materials
By default the engine hides ores and buried chests, reducing the visible difference between stone and valuable blocks.
Reveal timing
Blocks stay masked until the player reaches them, and the reveal happens within a split second of the approach.
Configurable engine
A second configuration method for the anti-xray engine is available alongside the default setup.
Compatibility
Latest build for each game version and loader.
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Protecting a survival server
Server owners who want ore locations to be harder to find by scanning the terrain can run the engine on their Fabric server.
Who it’s for: Server owners running Fabric who want to make ores and buried chests harder to spot. Players do not need the mod on their own computers.
Questions
Does a player need Plymouth: Anti-Xray to join a server running it?
Which loader does Plymouth: Anti-Xray support?
Is there a known issue with the bedrock layer?
In the catalog
Plymouth: Anti-Xray is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 9,374 mods support Minecraft 1.19.4.
More from Ampflower
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What the author says
An anti-xray engine that by default hides precious vanilla materials such as ores and buried chests. If you do find any issues, be sure to report in detail on the issue tracker, including any other mods you may have installed and any steps you've took to get here. If you don't know what steps exactly, at least try to…
Official listing
- Modrinth page
- modrinth.com/mod/plymouth-anti-xray
- Owner
- Ampflower
- Published
- 2021-04-01
- Updated on Modrinth
- 2023-03-18
- Facts verified
- 2026-10-15