SharedMap

v2.1.0·Updated 2026-09-26

Shared exploration layer plus public/private markers with owner-only delete, synced through the server. Crossplay-safe; players without the mod can still join.

About this mod Author’s original text

SharedMap

A shared map layer for your server: everyone's exploration and public markers, synced through the server and saved next to the world. Your own map stays your own.

Markers

  • Public marker: choose an icon and double-click the map. Everyone on the server sees it, tinted so you can tell it apart.
  • Private marker: hold Left Ctrl while double-clicking. Only you see it, like vanilla.
  • Make public later: hold Left Shift and left-click one of your private markers, or a greyed-out marker read from a cartography table. A plain left-click on a greyed-out marker makes it your own private (white) marker, as in vanilla.
  • Cross out: left-click a marker to cross it out or undo the cross. Anyone can cross out a public marker.
  • Delete: right-click a marker. A public marker can only be deleted by the account that placed it or by an admin (listed in adminlist.txt; the host of a listen server counts as admin). The server logs every deletion with the player, marker name, icon, biome, coordinates and owner.
  • Duplicates: markers with the same icon and name (unnamed ones count too) within 20 m (configurable on the server) are cleaned up:
  • Between public markers, the server keeps the original and removes the new one.
  • On your own map, every marker is checked: public (gold), private (white) and cartography (grey). Gold beats white beats grey; within a colour the older marker stays.

Personal map

  • Shared exploration shows as lighter fog, the same shading vanilla uses for cartography-table data. It is never written into your own exploration.
  • Hiding the shared map: untick the Server shared map checkbox on the large map (above vanilla's cartography and "Visible to other players" checkboxes) (or set ShowSharedMap = false). This hides shared exploration and public markers without changing your own exploration, private markers or cartography-table data.
  • Cartography tables: areas you read from a table are added to the shared exploration for everyone. Vanilla's "Cartography Table Shared map" checkbox then only shows or hides the table's pins; the fog stays under the "Server shared map" checkbox.
  • Saving: public markers are never saved to your character or written to a cartography table. Your client receives them from the server each time you join.

Crossplay / network

  • Map data is sent in batches of compressed changes. The initial map goes out in bands of 64 rows. Nothing is sent pixel by pixel.
  • Sending pauses whenever a connection's send queue is busy, so the map never delays world and gameplay data.
  • There is no version enforcement. Players without the mod, including console players, can join and are never sent map data.

Install

  • Server: required. It stores the map in.txcsharedmap next to the world.db file, keeping the previous save as.txcsharedmap.old.
  • Clients: every player who wants the shared map. The server and clients must run the same major version.

Config (BepInEx/config/txc.sharedmap.cfg)

| Section | Key | Default | |

|---|---|---|---|

| General | ShareExploration | true | Server setting. |

| General | SharePins | true | Server setting: allow public markers. |

| General | ForcePublicPosition | false | Server setting: forces vanilla "Visible on map" on for every player, including players without the mod. For modded players the checkbox is ticked and locked. |

| General | DuplicateRadius | 20 | Server setting: duplicate radius in metres. 0 = off. |

| Client | ShowSharedMap | true | Show shared exploration and public markers. |

| Client | PrivateMarkerKey | LeftControl | Hold this key while double-clicking to place a private marker. |

| Client | PublishMarkerKey | LeftShift | Hold this key and left-click a private or greyed-out marker to make it public. |

| Client | PublicMarkerColor | light gold | Tint of public marker icons. |

| Network | SendInterval | 0.25 | Seconds between send batches. |

| Network | MaxMessagesPerTick | 4 | Maximum messages per connection per batch. |

| Network | MaxSendQueueBytes | 5120 | Map sendin

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
SharedMap-2.1.0.zip
File size
28.3 KiB