Lockstep

v0.5.0·Updated 2026-10-08

The next boss stays sealed until every player on the server has defeated the previous one. Server synced.

About this mod Author’s original text

Lockstep

The next boss stays sealed until every player on the server has defeated the previous one. Fast players wait for the

group; nobody skips ahead.

Features

  • Altar gate: a boss altar opens only once everyone has defeated the boss before it.
  • Waiting list: a closed altar names the players the group is waiting for; the offering is kept.
  • Credit per player: everyone who hit the boss, plus everyone within a set distance when it dies.
  • Roster: fills itself as players join; players away for a set number of days stop holding the group back.
  • Late joiners: new players catch up with everything the world has already cleared, or earn each boss themselves.
  • Safe mid-playthrough: bosses already defeated count as cleared for everyone.
  • Spawn guard: a sealed boss cannot spawn even if another mod gets past the altar.
  • Open world: biomes, portals, dungeons and crafting stay open, and the game's own boss progress is untouched.
  • Boss chain: Eikthyr, The Elder, Bonemass, Moder, Yagluth, The Queen and Fader, in a YAML file; add modded bosses or

change the order.

Console commands

  • lockstep status: each altar, open or who it waits for, and every player's credit.
  • lockstep grant: gives a player credit for a boss (admins).
  • lockstep revoke: takes that credit away (admins).
  • lockstep ignore / unignore: the player never holds the group back, or counts again (admins).
  • lockstep forget: removes a character from the roster; joining again starts fresh (admins).
  • charter status: whether the server's settings bind yours.

Install

Needed on the server and every client; the server refuses clients without it. Install with r2modman or the

app, or put Lockstep.dll in BepInEx/plugins. Replaces OathBound (up to 0.1.2): remove it, its config

files are not read.

Configuration

BepInEx/config/com.Lockstep.cfg and LockstepChain.yml; the server keeps its roster in

Lockstep..roster.yml. Every setting is described in the file and applies without a restart; the server's

values bind every player (Lock Configuration). The Wiki tab has the details.

Links

Discord:

Bugs and ideas: (name the mod and version). Licence: GPL-3.0.

Shout outs

  • The BepInEx and Harmony teams, for the tools every Valheim mod stands on.
  • Iron Gate Studio, for Valheim.

-, for hosting this page.

  • The Valheim modding community, for the hard work and dedication that keeps enhancing an already great game.
  • Every modder who keeps their mods open source so others can collaborate, learn and build on them.
  • The co-op group that kept waiting at the Elder altar for the one player who was still at work.

Install & use Install: BepInEx plugin

  1. The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
  2. Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
  3. Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
  4. Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.

Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file. In multiplayer, the host and every client need the same mods installed.

Dependencies

Install these first, or the mod will not work:

denikson-BepInExPack_Valheim

File & checksum

Filename
Lockstep-0.5.0.zip
File size
340.3 KiB