Source-checkedQuality of life & UI

Master Filter

by Parcew · for Core Keeper

Master Filter adds five extra filter slots to item collectors and robot arms, so you can whitelist or blacklist exactly what they pick up.

1.3KDownloads
36d agoLast updated
mod.ioSource

About Master Filter

From mod.io

Master Filter adds five extra filter slots to item collectors and robot arms, so you can whitelist or blacklist exactly what they pick up.

Master Filter


Master Filter adds five extra filter slots to item collectors and robot arms so you can control exactly which items they pick up. All filters sync in multiplayer and persist across world loads.

Works on Core Keeper 1.3+, multiplayer and dedicated servers.

FEATURES

Master Filter gives you complete control over what your item collectors and robot arms pick up. Instead of just one vanilla filter, you get six slots to work with: the original filter plus five extra. Each slot can be set as either whitelist or blacklist, so you can allow exactly the items you want or block the ones you don’t. The interface keeps the native look and lets you choose items directly from your inventory, and every change is saved and synced across all players in multiplayer. A visual indicator on the machine lights up whenever any filter is active, so you can always see at a glance what is being controlled.

You can use either whitelist filters or blacklist filters on a machine, but not both at the same time.

Whitelist filters let you decide exactly which items a machine is allowed to pick up. Any item that matches a whitelist entry will be collected, while everything else is ignored.

Blacklist filters let you decide which items a machine should never pick up. Any item that matches a blacklist entry is ignored, while everything else is collected normally.

HOW IT WORKS

  • Open the filter window on any item collector or robot arm to access all six filter slots.
  • Use the first slot as the normal vanilla filter, and the remaining five slots for extra whitelist or blacklist entries.
  • Pick items directly from your inventory to assign them to a slot.
  • Clear any slot individually or remove all filters at once.
  • Filters are saved automatically and restored when you reload the world.
  • A small light on the machine turns on whenever any filter is active.

CREDITS

Created by Parcew and Misprinted_Zedruu
Special thanks to the Core Keeper modding community.

FEEDBACK & SUPPORT

Discord: @parcew (preferred)
You can also leave a comment on the mod page.

LINKS

Modding guide: https://modding.corekeepergame.com/
My other mods: https://mod.io/u/parcew/
Support my work: https://ko-fi.com/parcew

LICENSE

This mod is protected by the Parcew Mod License. Re-uploading, redistributing, or including this mod (or any of its files, assets, prefabs, or other original content) in other mods or packs without written permission is not allowed.

Full license: https://github.com/parcew/modding/blob/main/LICENSE.md
Permission requests: Discord parcew

This mod is not affiliated with or endorsed by Pugstorm.

Highlights

From source data

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 36d ago.

Master Filter on Nxeon

From our catalogue
One-click install
Supported on Nxeon Core Keeper servers. We download it from mod.io, place it, and restart the server.
Server side
Required on the server
Server load
light
Smallest plan we suggest
Core Keeper — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.0.1, released 2026-09-28

Run Master Filter on a Core Keeper server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on mod.io as “Quality of Life”

Quality of life & UI

Small conveniences, tweaks and interface improvements players notice straight away.

Runs on your server

From source side support

mod.io lists Master Filter as required on the server. Check its mod.io page to see whether players need it too.

Compatibility

Game
Core Keeper
Runs on
Serverrequired on the server

Verified at the source

  • ✓mod.ioOfficial listing, checked 2026-10-20Open ↗
  • ✓AuthorParcew, as published on mod.io
  • ✓LicenseNot published by the sourceFree

Master Filter, answered

Generated from the mod’s own source data.

Do my players need to install Master Filter?

mod.io lists Master Filter as required on the server. Check its mod.io page to see whether players need it too.

Is it free?

Yes. Master Filter is free to download from mod.io.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Master Filter on a Core Keeper server.

Deploy in about a minute from $4.99 a month, then add Master Filter in one click.