Serverside Simulations (Real Dedicated Server)

⭐ — (69 endorsements) 📥 2,464 downloads 📌 v1.1.9 📅 4/3/2021
🟠 Updated over a year ago

By MVP · Miscellaneous

⬇ Download Mod Source: Nexus Mods ↗ 📅 Updated: 5/14/2025 📅 Created: 4/3/2021
⚠️ Install Order · 1 step
1🛠️ BepInEx — BepInEx framework Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 2.8% endorsement rate — high engagement, a strong quality signal
  • 🏆 #35 of 144 Miscellaneous mods in this game by downloads

📋 About This Mod

Note: As of 2026, this project is no longer maintained.

Run world and monster simulations on a dedicated server.

Updated for patch: 0. 220. 5

Features

  • []Server simulates world and AI physics.

    []Client FPS improvements

    []Ships are simulated by the driver to improve the steering experience with high latency.

    Installation

    • []Install BepInEx (optionally installing "Better Networking" on both clients and the server is recommended)

      []Copy plugin DLL into the BepInEx/plugins/ directory on your dedicated server.

      []You're done! No client-side changes are needed.

      Configuration

      • []MaxObjectsPerFrame. MaxObjects can be increased to improve the loading times of areas on the server, at the expense of CPU usage.

        Caveats

        • []Only runs on dedicated servers.

          []The mod dramatically increases server resource usage and running it on a weak CPU may lead to a poor gameplay experience.

          []The mod should be disabled when using the "optterrain" command.

          []This mod does not prevent cheating or any kind of client manipulation.

          []While this mod is quite light on complexity, as with most mods it's possible future Valheim patches will break the mod in unexpected ways. We recommend you back up your characters and worlds and/or consider disabling this mod anytime a new game patch is released.

          Why?

          Ordinarily, to keep server resource usage low, the Valheim server will hand off simulation of an area to the first client that enters said area. However, if the player in charge of the area has a poor connection all other players in that area will suffer. This mod is an attempt at improving that specific situation at the cost of increased latency for the client which would ordinarily own the area.

          How?

          This dedicated server mod causes terrain, monsters and other objects that are normally created and owned by clients to instead be created on—and thus owned and simulated by—the server.

          For mod developers - compatibility with Serverside Simulations

          For mod developers interested in maintaining compatibility with Serverside Simulations:

          []If your mod makes changes relating to simulation / behaviour of the world, it will need to be able run on the dedicated server and should take these points into account:

          []Player.m_localPlayer is always null on a dedicated server; your code should check for this.

          [*]On a dedicated server, ZNet.instance. GetReferencePosition() return

🤖 AI-enhanced — based on mod data

A server-side mod for dedicated servers that offloads world and monster simulations from clients to the server, potentially boosting client performance. With 69 endorsements and 2,464 downloads, it's a niche tool for server admins seeking to optimize multiplayer experiences.

✨ Key Features

Moves world and monster simulations to the server for dedicated servers.
Potentially increases client performance by reducing client-side simulation load.
Targets dedicated server setups, not single-player or peer-to-peer.

📊 Pros & Cons

✅ Pros

  • Solid download-to-endorsement ratio (2,464 downloads, 69 endorsements) shows real interest.
  • Directly addresses a common multiplayer pain point: client lag from heavy simulation.
  • Simple concept with clear potential benefit for server admins.

⚠️ Cons

  • Only 69 endorsements—still a niche mod, so expect limited community feedback.
  • No install or configuration instructions provided by the author.
  • Last updated May 2025—check compatibility with your server version before using.
🎯 Is This For You?
For dedicated server admins running multiplayer sessions who want to shift simulation load off clients. If you're a single-player or co-op host, this isn't for you—it's strictly for dedicated servers.
📦 Install:Medium· 5-10 minutes

💡 Beginner Tips

  • Ensure your server is truly dedicated—this mod won't work on a listen server.
  • Test with a small group first to measure client FPS improvements before rolling out to a full server.
  • Keep an eye on server CPU usage; moving simulations server-side can increase server load.

📊 Mod Details

Game
Valheim Mods
Author
MVP
Version
1.1.9
Downloads
2,464
Endorsements
69
Category
Miscellaneous
Created
4/3/2021
Updated
5/14/2025

🔧 How to Install Valheim Mods

Download from Nexus.

📖 Full step-by-step install guide for Valheim →

Visit the official mod page for specific installation instructions for this mod.

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