Krypton vs ServerCore
Krypton
github.comServerCore
github.comSide by side
| Figure | Krypton | ServerCore |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 0 |
| Spec score · Minecraft Performance Mods | 8.5 (#2) | 6.7 (#11) |
| License | The project is licensed under LGPL-3.0-only. | 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. |
| Minecraft versions | Modrinth lists compatibility with Minecraft Java Edition versions 1.16.2 through 1.16.5, 1.17.x, 1.18.1 through 1.18.2, 1.19.x, 1.20.x, 1.21.x, and 26.1 through 26.3. | Modrinth lists support from Minecraft Java Edition 1.17.1 through 1.21.x, 26.1.x, 26.2 and 26.3. |
| Purpose | Krypton is a Fabric mod that optimizes the Minecraft networking stack and entity tracker. | ServerCore is a Minecraft mod that aims to optimize the Minecraft server. |
| Support | Support is provided on a best-effort basis, and the maker does not guarantee stability, compatibility, or support for every setup. | The project README links to a Discord server, and Modrinth links to GitHub issue reporting. |
Plans
In their own words
Krypton
Krypton is a free Fabric mod that optimizes Minecraft networking and entity tracking, with its performance work directed mainly at servers. It works on both clients and servers, including dedicated servers. Its network handlers are based on optimized Netty handlers from the Velocity proxy, using native code where appropriate. Flush consolidation is intended to reduce server CPU use and tick times and lessen the impact of speculative-execution hardware vulnerabilities. Other small optimizations target memory use and packet serialization speed. Krypton is tuned for Linux, though it should work wherever Minecraft can run. CurseForge lists Fabric and Quilt as supported loaders. The project aims to work with Fabric API, Lithium, and Sodium; compatibility with other mods is best effort. It is licensed under LGPL-3.0-only, and the maker does not guarantee stability, compatibility, or support for every setup. The project is described as feature-stable, while updates for newer Minecraft versions depend on the maker's availability and need. Listed compatibility includes Minecraft Java Edition versions 1.16.2 through 1.16.5, 1.17.x, 1.18.1 through 1.18.2, 1.19.x, 1.20.x, 1.21.x, and 26.1 through 26.3.
ServerCore
ServerCore is a free, self-hosted Minecraft mod focused on server performance and lag-spike reduction. It runs on dedicated servers and in singleplayer, with Modrinth compatibility for Fabric, Forge, and NeoForge. Entity Activation Range reduces the entities processed by the server. Dynamic checks can adjust chunk-tick distance, view distance, simulation distance, and mobcaps according to tick time and configuration. Administrators can set spawn rates and mobcaps per spawn group, with optional rules for reinforcements, spawners, and nether-portal random ticks. Breeding Caps limit same-type breeding within a radius, while chunk-ticking-distance narrows the range for mob spawning and random ticks. Commands include reload, settings, status, mobcaps, and statistics. Configuration files are config.yml and optimizations.yml in config/servercore. Changes that alter vanilla behavior are disabled by default.