
HP: HariPlayer
A server-side optimization mod that improves multiplayer performance through async chunk loading, spatial entity tracking, and network packet efficiency
⬇ Download on ModrinthHariPlayer | View Distance & Network Engine
High-Performance Player & Chunk Management
What Is HariPlayer
HariPlayer stands for View Distance & Network Optimization Engine (based on VMP).
It optimizes how servers handle player connections, entity tracking, chunk loading, and network packets — reducing lag where it matters most.
More Players. Less Lag.
By reworking player-related systems from chunk loading to packet handling, HariPlayer allows servers to sustain higher player counts and larger view distances without choking.
Technical Architecture
Optimized for high-throughput multiplayer environments.
- Async Chunk Loading: Chunks load asynchronously on player login and during teleportation to prevent lag spikes
- Spatial Entity Tracking: Replaces brute-force distance checks with O(1) spatial indexing using AreaMap
- Network Efficiency: Eliminates redundant packet flush calls and supports multi-event-loop Netty threading
- No-Tick View Distance: Loads chunks visually without ticking them, reducing server load at large distances
- Packet Consolidation: Batches block update packets to reduce network overhead
Configuration
Located in config/vmp.properties.
- Entity Tracking: Toggle spatial indexing and staging area for entity lookups
- Async Loading: Enable/disable async chunk loading on login and commands
- Network: Configure multiple Netty event loops and packet priority system
- Chunk Send Rate: Control the target chunk send rate per player
Fork Information
HariPlayer is a fork of VMP by ishland.
Server-Side: Primary optimizations target dedicated servers. Client-side benefits from reduced network lag.
Credits & Support
Original VMP created by ishland.
HariPlayer maintains the cutting-edge multiplayer optimizations.
Join the Community
Get help and updates on our Discord.
HariPlayer - Maintained by Hari - High Performance Minecraft
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as HariPlayer-mc1.20.1-2.0-all.jar — drop this file into the mods folder
- Download size: 983 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.