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ServerCore

ServerCore is a free, self-hosted Minecraft mod aimed at improving server performance and reducing lag spikes.

Place
#10 of 24
Score
5.5
ServerCore's website

What ServerCore is

ServerCore is a free, self-hosted Minecraft mod aimed at improving server performance and reducing lag spikes. It works on dedicated servers and in singleplayer, with compatibility listed for Fabric, Forge, and NeoForge. Entity Activation Range can reduce the entities processed by a server, while dynamic checks can adjust chunk-tick distance, view distance, simulation distance, and mobcaps based on tick time and configuration. Server owners can configure spawn rates and mobcaps by spawn group, add rules for reinforcements, spawners, and nether-portal random ticks, and set breeding caps by mob type and radius. The chunk-ticking-distance setting limits the distance for mob spawning and random ticks. Commands include reload, settings, status, mobcaps, and statistics; configuration files are in the config/servercore directory. Changes that affect vanilla behavior are disabled by default. Listed Minecraft Java Edition support ranges from 1.17.1 through 1.21.x, 26.1.x, 26.2, and 26.3.

Good

  • Works on dedicated servers and in singleplayer.
  • Dynamic checks adjust distances and mobcaps.
  • Spawn rates can be set by spawn group.
  • Vanilla-altering features are disabled by default.

Watch out

  • Configuration files are stored in a specific directory.
  • Some files use GPL-3.0; others use MIT.

Who it suits

ServerCore suits Minecraft server operators who want configurable performance controls, including dedicated-server administrators and players using singleplayer. Its configurable spawning and distance settings are useful for those willing to manage a mod's settings.

Verdict

ServerCore provides server-focused performance settings alongside detailed mob and chunk controls. Its default settings avoid changes to vanilla behavior, so operators can choose which adjustments to enable.

The facts

Each one read from ServerCore's own pages, with the date it was checked.

What it does

Breeding caps
Breeding Caps limit how many mobs of the same type can be bred within a specified radius.checked 1 Oct 2026
Chunk ticking
The chunk-ticking-distance setting reduces the distance at which chunks perform mob spawning and random ticks.checked 30 Sep 2026
Commands
The mod provides /servercore reload, /servercore settings, /servercore status, /mobcaps and /statistics commands.checked 30 Sep 2026
Configuration
Configuration files are config.yml and optimizations.yml in the config/servercore folder.checked 1 Oct 2026
Default behavior
Changes that can affect vanilla behavior are disabled by default.checked 30 Sep 2026
Distribution
The project is distributed through Modrinth and CurseForge and links to both from its README.checked 1 Oct 2026
Dynamic checks
Dynamic performance checks can adjust chunk-tick distance, view distance, simulation distance and mobcaps according to tick time and configuration.checked 1 Oct 2026
Entity activation
Entity Activation Range reduces the number of entities processed by the server and is based on Spigot and PaperMC implementations.checked 1 Oct 2026
Lag reduction
It includes patches and optimizations intended to improve performance and reduce lag spikes.checked 1 Oct 2026
Latest listed file
CurseForge lists ServerCore NeoForge 1.5.20+26.3 as the latest release, dated September 16, 2026.checked 1 Oct 2026
License
Modrinth lists ServerCore as MIT licensed, while the repository states that some files using patches are GPL-3.0 and all other files are MIT licensed.checked 1 Oct 2026
Loaders
The project lists Fabric, Forge and NeoForge as supported platforms.checked 1 Oct 2026
Minecraft versions
Modrinth lists support from Minecraft Java Edition 1.17.1 through 1.21.x, 26.1.x, 26.2 and 26.3.checked 30 Sep 2026
Mob controls
Configurable mob spawning supports per-spawngroup spawn rates and mobcaps, with optional rules for reinforcements, spawners and nether-portal random ticks.checked 30 Sep 2026
Mob spawning
Mob-spawning configuration allows spawn rates and vanilla mobcaps to be modified for each spawn group.checked 1 Oct 2026
Purpose
ServerCore is a Minecraft mod that aims to optimize the Minecraft server.checked 1 Oct 2026
Support
The project README links to a Discord server, and Modrinth links to GitHub issue reporting.checked 1 Oct 2026
Supported use
The mod works on dedicated servers and in singleplayer.checked 1 Oct 2026
Vanilla behavior
Features that alter vanilla behavior are disabled by default.checked 1 Oct 2026

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