How to Play Fields of Mistria Multiplayer: Mod Installation & Setup Guide

Learn how to set up and play Fields of Mistria multiplayer with friends using the MOMI installer, multiplayer mod, and local or VPN connections.

Official mediaLearn how to set up and play Fields of Mistria multiplayer with friends using the MOMI installer, multiplayer mod, and local or VPN connections.YouTube

Fields of Mistria has captured the hearts of cozy gaming fans with its beautiful pixel art, nostalgic 90s anime aesthetic, and engaging farming mechanics. If you've been yearning to share your cozy farming adventures with friends, the fields of mistria multiplayer mod is the answer you've been waiting for. While the base game from NPC Studio does not natively support co-op play yet, the dedicated modding community has stepped up to deliver a functional fields of mistria multiplayer experience. Through a combination of clever tools, players can now farm, mine, and socialize together in the same world.

In this comprehensive guide, we will walk you through everything you need to get your multiplayer farm up and running. From downloading the necessary files on Nexus Mods to configuring your network settings, we have you covered.

Why the Fields of Mistria Multiplayer Mod is a Game-Changer

The desire to farm together has always been high in the cozy gaming community. While the developers work on future official updates, the community-created fields of mistria multiplayer mod bridges the gap perfectly. Created by talented modder D3Ulo, this mod allows multiple players to inhabit the same farm, share resources, and explore the mines side-by-side.

According to community reports, the mod is actively updated to fix crashes and improve synchronization. It introduces a custom "Multiplayer" tab directly into the game's settings menu, allowing you to manage connections without leaving your game window.

What You Need to Play Fields of Mistria Multiplayer

Setting up fields of mistria multiplayer requires a few specific utility tools. Before diving into the installation steps, make sure you and your friends have downloaded the necessary files. All players who intend to join the session must install these files to ensure compatibility.

Required Software & Files

Component	Developer / Source	Purpose	Download Requirements
Nexus Mods Account	Nexus Mods	Accessing and downloading the required files.	Free registration required.
Mods of Mistria Installer (MOMI)	Community Modders	The primary mod installer compatible with Windows, macOS, and Steam Deck (Linux).	Manual download from Nexus Mods.
Multiplayer Mod	D3Ulo	The core gameplay mod that enables co-op systems.	Manual download; matches your game version.
Multiplayer Relay	D3Ulo	A background manager utility that handles data packet transfer between players.	Must be running during gameplay.
Virtual LAN Software	Redmin VPN / Hamachi	Emulates a local network connection for players in different households.	Only required for remote (WAN) play.

Step-by-Step Installation Guide

To ensure a smooth setup, follow these steps in order. Make sure your game is closed before beginning the installation process.

Step 1: Locate Your Game Files

First, you need to find where Steam has installed your game. Open Steam, right-click on Fields of Mistria, navigate to Manage, and select Browse local files. This will open your game directory in File Explorer.

Step 2: Create Your Mods Folder

Within the main game directory, create a brand-new folder and name it exactly mods.

Step 3: Extract and Place the Files

Extract the downloaded Multiplayer Mod zip file. Drag and drop the extracted files directly into the newly created mods folder. Additionally, place the Mods of Mistria Installer (MOMI) executable into your main game directory.

Step 4: Run the Installer

Execute the MOMI installer. If you have previously installed older versions of the mod, community guides recommend selecting the "Uninstall All" option first to clear out potential glitches. Once cleared, click Install and wait for the process to complete.

Step 5: Run the Multiplayer Relay

Before launching your game, extract the Multiplayer Relay zip file and run the relay executable. This console window must remain open in the background while you play.

graph TD
    A[Open Steam & Browse Local Files] --> B[Create 'mods' Folder]
    B --> C[Extract Multiplayer Mod into 'mods']
    C --> D[Run MOMI Installer & Click Install]
    D --> E[Launch Multiplayer Relay Executable]
    E --> F[Launch Fields of Mistria]

Installation Workflow Checklist

Step #	Action Required	Target Directory	Key Notes
1	Open local files via Steam	`...\Steamapps\common\Fields of Mistria`	Keeps your file path accurate.
2	Create a new folder	Inside the main directory	Must be named lowercase `mods`.
3	Extract Multiplayer Mod	Inside the `mods` folder	Ensure files are not nested in double folders.
4	Run MOMI	Main directory	Select "Uninstall All" first if upgrading.
5	Launch Relay	Run from any folder	Keep the terminal window open during play.

Hosting a Multiplayer Game (Local vs. Remote WAN)

Once your files are installed, you need to establish a connection between the host and the client. The hosting process differs slightly depending on whether you are in the same room or playing across the internet.

When hosting fields of mistria multiplayer sessions, you will need to share your IP address with your friends.

Scenario A: Playing on the Same Wi-Fi (LAN)

If you and your friends are connected to the same home network, hosting is incredibly straightforward:

Open your computer's Command Prompt (type cmd in the Windows search bar).
Type ipconfig and press Enter.
Locate your IPv4 Address (usually formatted as 192.168.X.XX).
Copy this address and share it with your local players.

Scenario B: Playing from Different Locations (WAN)

If you are playing with friends in different homes, states, or countries, you must emulate a local network.

Download and install a free virtual LAN manager like Radmin VPN.
Create a private network within the VPN software and have your friends join it.
Copy the virtual IP address assigned to you by the VPN software (e.g., 26.169.172.57).
Send this virtual IP address to your friends. Note that you cannot copy-paste directly into the game menu; players will need to manually type the address.

Connection Method Comparison

Feature	Local LAN Connection	Remote WAN (Virtual VPN)
Best For	Roommates, family members, local gatherings.	Friends playing from different households.
Setup Complexity	Very Low	Moderate (requires external software).
Required Tools	Windows Command Prompt (`ipconfig`).	Radmin VPN, Hamachi, or port forwarding.
Connection Stability	High (limited only by local router).	Dependent on internet speeds and VPN latency.
Security	Safe (confined to your local network).	Safe (when using private, passworded VPN rooms).

How to Join a Friend's World

Joining a session is simple once the host has set up their network. Make sure your Multiplayer Relay is running in the background before launching the game.

Step-by-Step Joining Instructions

Launch Fields of Mistria and load your character's save file.
Open your in-game menu and navigate to the newly added Multiplayer tab in your settings.
Set your connection Mode to Join.
In the Host IP field, manually type the IP address provided by the host (either their local IPv4 or their virtual VPN IP).
Ensure the Port matches the host's port (the default port is highly recommended).
Return to the game. It may take a moment to sync, but your character will soon materialize in your friend's world!

Host vs. Client In-Game Settings

Setting Field	Host Configuration	Client (Joiner) Configuration
Mode	Set to `Host`	Set to `Join`
IP Address	Input your own IPv4 or VPN IP	Input the Host's exact IP address
Port	Default (e.g., `7777` or as specified by relay)	Must match the Host's port exactly
Refresh Rate	Adjust based on connection quality	Matches host or set to default

Gameplay Sync, Saving, and Known Limitations

Because this is a community-driven project, there are a few architectural quirks you should keep in mind to protect your progress. Players are encouraged to back up their save files regularly. You can find more information and updates on the official Fields of Mistria website regarding base-game patches that might affect mod compatibility.

When exploring the map in fields of mistria multiplayer, keep in mind how progress is tracked:

Save File Behavior: When a client joins a host, the game automatically creates a backup save of the client's character. Any subsequent saves (including autosaves and manual saves) made during the multiplayer session will save the client's character data, but the world progression will be saved directly to the host's file.
Overworld Progress: Overworld states, unlocked areas, and bridges may not appear open to the joining player if they have not unlocked them in their own personal single-player save file.
Turn-In Boxes: In earlier versions, turning in quests via the town boxes could cause client crashes. According to the version 4.1 changelog, turn-in boxes have been untethered between client and host, significantly improving stability.
NPC Synchronicity: The mod uses the host's game to sync NPC positions. If you notice townspeople teleporting or lagging, it is likely due to temporary connection latency.

Feature Sync Status & Stability

Gameplay Feature	Sync Status	Community Experience & Workarounds
Character Inventory & Skills	Fully Synced	Saves directly to your character file; safe to carry back to single-player.
Farming & Crops	Fully Synced	Both players can water, harvest, and plant crops in real-time.
Mines & Combat	Partially Synced	Combat works well, but floor transitions can occasionally desync under high latency.
Quests & Turn-In Boxes	Improved (v4.1)	Turn-in boxes are now untethered to prevent mismatched quest crashes.
NPC Placements	Synced to Host	NPCs sync to the host's timeline. Clients may experience minor visual stuttering.
Dating & Marriage	Protected (v4.0+)	Updates resolved an issue where joining players' relationship statuses were overwritten.

Troubleshooting Common Connection Issues

If you run into issues while trying to connect, don't panic. Most problems stem from minor configuration mismatches.

Connection Timed Out: Double-check that both players have the exact same port number typed into their settings. Also, ensure the host's firewall is not blocking the game or the Multiplayer Relay.
Relay Crash on Startup: Ensure you have run the MOMI installer successfully. If the game received a recent update, check the mod's Nexus page to see if a new version of the mod or relay is required.
Lag or High Input Latency: If players are teleporting, try adjusting the "Refresh Rate" slider in the in-game Multiplayer settings. Lowering this can ease the strain on slower internet connections.
Can't Paste IP Address: The in-game text fields do not support clipboard pasting. You must type out the IP address manually, character by character.

Frequently Asked Questions

Is there an official fields of mistria multiplayer mode?

As of right now, there is no official multiplayer mode built natively into the game. The developers, NPC Studio, have expressed interest in co-op features for future updates, but for now, the community-created mod is the only way to play with friends.

Can I use my single-player character in a fields of mistria multiplayer session?

Yes, you can load your existing single-player character to join a friend's world. Your inventory, levels, and tools will carry over. However, any world changes, story progression, and farm layouts you build together will be saved to the host's world file, not your own.

Does the multiplayer mod work on Steam Deck?

Yes! The Mods of Mistria Installer (MOMI) includes a Linux/Steam Deck version. You will need to run the installer and the relay in Desktop Mode on your Steam Deck to get everything set up before launching the game.

Will installing this mod corrupt my save files?

While the mod is generally safe and automatically backs up your character before joining, modding always carries a small risk of file corruption. It is highly recommended to manually copy and back up your save files (found in your AppData directory) before running the mod.