Defense Systems
Defense Systems adds blocks that guard a base against hostile mobs and enemy players, linked together by a central defense computer.
What it does
Defense blocks are placed around a base and connect to a defense computer within a 128 block radius, and the radius extends from the top of the build height down to bedrock level. Linked defenses are coordinated from that single point, so a base does not need each device configured by hand.
Targeting is handled per player. Clicking a block with a named item adds that player's name to the whitelist of the device, and clicking with a named item whose name starts with an exclamation mark removes the player from it. Players on the whitelist are not attacked, while players who are not listed are attacked even when spotted by linked defenses. Right-clicking a defense device while holding no custom-named item switches the mode it uses to pick targets, and the Camera Box provides a view of the surrounding area.
Key features
Linked defense computer
A defense computer connects the defenses within 128 blocks of it, reaching from the build height down to bedrock.
Whitelist by named item
Clicking a block with a named item adds the player's name to the device's whitelist.
Whitelist removal
A named item whose name starts with an exclamation mark removes a player from the whitelist.
Targeting mode switch
Clicking a device without a custom named item cycles its targeting mode.
Camera Box
A Camera Box gives a view of the area covered by the defenses.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Protecting a base
Defenses placed around a base attack monsters and enemy players who are not on the whitelist.
Friendly access on a server
Server members are added to the whitelist so they are not attacked while linked defenses still target outsiders.
Who it’s for: Players who build bases in survival worlds and server owners who want defenses that do not attack trusted members. Both the server and every player need the mod, which runs on Fabric and requires Fabric API.
Questions
Does Defense Systems need Fabric API?
Does Defense Systems have to be installed on the server?
Which game versions does Defense Systems support?
In the catalog
Defense Systems is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 9,374 mods support Minecraft 1.19.4.
More from ImplicitSaber
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/defense-systems
- Owner
- ImplicitSaber
- Published
- 2023-04-24
- Updated on Modrinth
- 2023-05-08
- Facts verified
- 2026-10-15