Delverium Lodestone Live Map: Browser Viewer, Zoom and Player Positions

Updated October 4, 2026 · Delverium Guide

A Lodestone server provides a browser world map on gameplay port +5: the default is 27021 when gameplay uses 27016. Open the host's map address to view one level at a time, player positions and teleporters. This viewer is separate from the stock game's map controls.

Public documentation observed October 4, 2026 UTC; community/server instructions are limited to the named software

Open the viewer your host provides

1. Ask the host for the server address and gameplay port.
2. Add five to that port, unless the host configured a specific map port.
3. Open http://<server-ip>:<map-port>/ in a browser.
4. If the host enabled AccessKey, enter the provided key when the viewer asks.

For a default server, the address uses port 27021, not the 27016 game connection or 27020 admin API.

Use the right level and zoom

The viewer shows terrain one level at a time, connected players and teleporter points. Its closer view uses terrain textures; its farther view uses one colour per tile. Use the viewer's zoom and level controls to inspect the intended area. Player positions refresh separately and a stale location is marked as stale.

The timelapse replays frames the host kept for that level. It is not a guarantee that every past edit or disconnected player's location remains available.

Host configuration that affects access

The configuration file is BepInEx\config\com.humangenome.lodestone.map.cfg. With Map.Port at zero, the listener follows the game port +5. A nonempty Map.AccessKey restricts the viewer and its data; an empty value leaves them reachable to anyone with the address. Set the access appropriate to your group before sharing a map publicly.

If the viewer is unreachable

Confirm Map.Enable, the actual port and the host's TCP/firewall access for that viewer. A working game connection uses UDP and does not prove that the map's TCP port is reachable. This web-map feature does not establish a keyboard or scroll-wheel zoom binding in the stock game.