How do you reveal the whole map in Valheim?

Short answer

Set expectations first: the maintained Valheim mods cover uncovering the map faster and sharing what is already uncovered, not unfogging the world in one click. CartographySkill widens the radius you reveal as you travel, ServerSideMap moves exploration to the server so everyone shares it, and Better Cartography Table controls that sharing per pin.

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Mods that do this

ServerSideMap

Mydayyy
Bog Witch

Shares the Map between all players, synchronizes map when connecting

⬇ 193K Downloads

CartographySkill

Advize

Adds the cartography skill, allowing you to increase your map explore radius as you uncover more of your map.

⬇ 106K Downloads

Better_Cartography_Table

nbusseneau
Bog Witch

Allows precise control over sharing pins and map exploration via cartography tables. Supports private pins, public pins, and guild pins. Supports NoMap runs, giving cartography tables a purpose in NoMap. Translations available.

⬇ 80K Downloads

The details

CartographySkill is the closest thing to revealing more, and its README explains why it helps at all: the radius Valheim uncovers around you is smaller than your view distance, so you routinely sail past a visible coastline that never lands on the map. The mod raises that radius either as a flat value or through an optional custom skill. By default you can reach skill level 100 before finishing a world, but it awards no experience for ground you already discovered, so a fully explored world will not level it.

ServerSideMap is the co-op answer, and it is a bigger change than it sounds. It moves explored areas and pins off individual clients and onto the server, which then distributes them to everyone and syncs a joining player up to the group's progress. Pin sharing is a separate switch that defaults to off, and a /convertpins chat command uploads pins a client already had, since existing client-side markers are not migrated automatically.

Two things about ServerSideMap will cost you an evening if you find them the hard way. Its README states it is incompatible with crossplay and PlayFab, so a crossplay server is simply out. It also requires it be installed on both server and client, and admins may need to move the world's .explored file by hand after Valheim's save-folder restructure.

Better Cartography Table takes the opposite stance on sharing: everything private unless you choose otherwise. Pins default to private and get shared individually through a cartography table; map exploration sharing can be public, private, or limited to a guild if Smoothbrain's Guilds is installed. Several players at one table see each other's changes live, which makes planning a trip an actual shared activity. It also gives cartography tables a purpose under the NoMap world modifier, where the map is reachable only by standing at one.

If you want the map to matter more rather than less, ZenMap goes the other direction — the map is only viewable at a cartography table, and the table reveals its surroundings over several in-game days rather than instantly. Read its warning before installing: it resets existing character map exploration data, so back up your character first.

New to mods? Read the install & configuration guide. Read the full install & configuration guide →

Related questions

Is there a mod that reveals the entire Valheim map instantly?
Not among the maintained packages in the catalogue we index. The available options widen the radius you uncover as you travel, or share what the group has already uncovered. Treat any promise of a one-click full reveal as something to verify on the mod's own page first.
Does Valheim share map exploration in multiplayer by default?
No. Pins can be shared manually, but discovered terrain is per-player. ServerSideMap moves exploration to the server so it is shared automatically; Better Cartography Table shares it through cartography tables with per-pin control.
Will a shared map work on a crossplay server?
Not with ServerSideMap — its README lists crossplay and PlayFab as incompatible. On a crossplay server, cartography-table sharing is the workable route.

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