Moonrise
by spottedleaf
Moonrise targets the performance of the integrated and dedicated server, and its changes to chunk handling and entity work are the main part of what it does.
What it does
Moonrise reworks how the server handles entity movement, collisions, physics and tracking, and how chunks are ticked, loaded, generated and saved. Block and entity lookups, which pathfinding and entity AI query often, are also covered. The changes are meant to lower measured tick times on a server and to speed up chunk loading and generation. Effectively all of its changes are also included in Paper, except those that intentionally alter gameplay.
Moonrise works on the client or on the server, though it mainly helps the server side. A client install also changes the server list ping display. Moonrise is open source and released under the GNU General Public License v3.0 only. It is published for Fabric and NeoForge, with files for 1.21 – 26.3 covering 16 release versions.
Key features
Entity work
Movement, collisions, physics and tracking for entities are rewritten to reduce the cost of each tick.
Chunk pipeline
Ticking, loading, generation and saving of chunks run through a reworked system, the area that most other chunk mods also touch.
Packet handling while waiting
Packets that arrive while the integrated or dedicated server waits for its next tick are handled earlier, which lowers perceived latency.
Worker thread default
On systems with few cores, the worker thread count is lowered by default, trading some chunk loading speed for stability.
Tick catch-up default
The server no longer speeds up to make up time after a brief lag spike, unless the default is changed.
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x11 of 11 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Incompatible 3
Required by 2 mods
Use cases
Busy multiplayer servers
Server owners who run large player counts or heavy entity loads can use Moonrise to reduce tick times.
Who it’s for: Server owners running the integrated or dedicated server, and single-player players who want lower tick times on their own world. Clients do not need the mod to join a server that runs it.
How it compares
SeamlessChunks is a client and server mod for Fabric and NeoForge, covering 1.21.1 – 26.3, under the MIT License, and it is not open source. Concurrent Chunk Management Engine (Fabric) is server required with client optional, Fabric only, for 1.17.1 – 26.3, under the MIT License, and it is open source; it is incompatible with Moonrise. Pathwright is server required with client optional, for 26.1 – 26.1.2 on Fabric and NeoForge, under the MIT License, and it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Moonrise | Fabric and NeoForge | 1.21 – 26.3 | Client or server, optional | 2026-09-27 |
| SeamlessChunks | Fabric and NeoForge | 1.21.1 – 26.3 | Client and server | 2026-09-23 |
| Concurrent Chunk Management Engine (Fabric) | Fabric | 1.17.1 – 26.3 | Server required, client optional | 2026-10-13 |
| Pathwright | Fabric and NeoForge | 26.1 – 26.1.2 | Server required, client optional | 2026-05-20 |
Questions
Does Moonrise need to be installed on the client?
Which mods conflict with Moonrise?
Does Moonrise change other optimization mods' behavior?
In the catalog
Moonrise is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.
More from spottedleaf
Similar mods
What the author says
Moonrise is a Fabric/NeoForge mod for optimising performance of the integrated (singleplayer/LAN) and dedicated server. Effectively all of Moonrise's changes are included in Paper, except those from Paper that intentionally change gameplay. Moonrise can run on either the client or server, but primarily benefits the…
Official listing
- Modrinth page
- modrinth.com/mod/moonrise-opt
- Owner
- spottedleaf
- Published
- 2024-09-03
- Updated on Modrinth
- 2026-09-27
- Facts verified
- 2026-10-15