Valheim Server Settings That Actually Matter

Valheim’s server configuration is split across three places: startup parameters (command-line flags), world modifiers, and in-game admin commands. Most guides dump all the options in a list without telling you which ones actually matter. This one focuses on the settings worth caring about.

Quick Reference: Settings That Most People Change

Everything else is either fine at defaults or only relevant for specific situations.

Startup Parameters

These are set through your hosting control panel (Server Options in our Game Control Panel) or as command-line flags if you’re self-hosting.

The Essential Ones

Useful But Optional

World Modifiers

World modifiers are Valheim’s built-in difficulty and rule customization. You pick them when you create a world, but they are not locked in: an admin can change any of them later with setworldmodifier from the F5 console, or set them as startup flags on a dedicated server.

They’re still worth agreeing on with your group up front, because changing the rules midway through a playthrough tends to be more disruptive than deciding once.

Combat & Difficulty

Economy & Resources

Presets

Valheim offers preset combinations for common playstyles:

• Normal - Default everything. The intended experience.
• Casual - Easier combat, no death penalty, resources up, portals unrestricted.
• Hard - Tougher enemies, more punishing death, restricted portals.
• Hardcore - Permadeath. Exactly what it sounds like.
• Immersive - Hard combat and portals, but normal resources and death.
• Hammer - Creative-adjacent: easy combat, lots of resources, no portal restrictions. Built for building.
• Custom - Mix and match individual settings.

Admin Commands

Once you’re set up as an admin (your Valheim player ID added to the admin list), press F5 in-game to open the console. Here are the commands worth knowing:

Player Management

Server Operations

How to Set Up Admin Access

On WinterNode:

1. Get the player’s Valheim player ID (see our player ID guide). Since Valheim 1.0 this is the V_ prefixed ID from the in-game F2 player list, not a bare SteamID64.
2. Go to your server’s control panel
3. Navigate to admin list settings
4. Add the player ID

Self-hosted: Edit adminlist.txt in the server’s data directory. Add one player ID per line, copied exactly including the V_ prefix. Restart the server.

Full admin setup details are in our admin guide.

Performance Settings Worth Knowing

Valheim doesn’t expose many server-side performance knobs, but a few things are worth understanding:

Save interval: The server saves on the interval set by -saveinterval, 1800 seconds (30 minutes) by default. Saves are different from backups, which have their own flags. On large worlds with lots of builds, each save can cause a brief lag spike, so raising it trades safety for smoothness and lowering it does the opposite. On WinterNode this is the Backup Interval field on the Server Options page, which sets the save interval despite the name. The default is fine for most servers.

View distance: Controlled client-side, not server-side. Players who crank their render distance load more data from the server. If one player is causing lag spikes, check their draw distance settings.

Entity limits: There’s no configurable cap on entities (items on ground, tamed animals, etc.), but the practical limit is your server’s RAM. If performance degrades, the cause is usually too many entities in one area - particularly ground items and large animal farms.

Terrain modifications: Every terrain change (pickaxe, hoe, cultivator) is stored permanently. Heavily terraformed areas are more expensive to load. There’s a terrain reset command in newer Valheim versions that can help: optterrain in the console smooths out unnecessary terrain modifications.

Settings You Probably Don’t Need to Touch

These exist but rarely need changing:

• Instance ID - Internal identifier. Leave it alone.
• UPnP - Only relevant for self-hosted. Attempts automatic port forwarding.
• Max players - There’s no setting for this. Valheim caps every server at 10 players in the game itself, and only a BepInEx plugin can raise it. See Valheim Player Limit.

Getting Started

WinterNode handles the infrastructure so you can focus on the settings that matter to your group. Server options are managed through a clean control panel - no SSH, no config file editing required.

All game servers are $1.99/GB of RAM with no extra charges. Get your Valheim server → Our Valheim help center has detailed guides for every configuration topic. Support is available via ticket or Discord - backed by a 48-hour refund policy.