.APMC File Extension

Archipelago Minecraft Multiworld Seed

Developer KonoTyran
3.0  |  2 Votes

What is an APMC file?

An APMC file is a data file used to access a multiworld Minecraft Java Edition game created by Archipelago. It contains a seed that Archipelago uses to connect a player to their portion of a multiworld game. Game hosts generate APMC files via Archipelago's Generate Game and Seed Info screens.

More Information

Screenshot of a .apmc file in Microsoft Visual Studio Code
APMC file open in Microsoft Visual Studio Code

Archipelago is a tool that allows video game players to play randomized, multiworld games. In these games, items needed to progress through the game are randomized and placed throughout multiple players' game worlds. To progress, players must work together to find the items placed in their worlds.

Minecraft Java Edition players can use Archipelago to create and play multiworld games. To do so, they create .YAML files that specify their desired game world settings. Then, they provide the YAML files to the multiworld game host, who uses the files to create a set of APMC files (from Archipelago's Generate Game screen).

Each APMC file contains a seed that a player can use to connect to their specific game world, via Minecraft Forge. As long as the corresponding multiworld game room is active in Archipelago, Minecraft Java Edition players can double-click an APMC file to play in the world to which it is linked.

How to open an APMC file

While you can technically open an APMC file with any text editor, to view the Archipelago Minecraft seed it contains, doing so isn't especially useful. You should not edit an APMC file's contents.

To learn more about how to use an APMC file with Archipelago and Minecraft Java Edition, click here.

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Programs that open or reference APMC files

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