Archipelago

Archipelago is an open-source multi-game randomizer framework that allows multiple players to play different games simultaneously while sharing a unified item randomization system. The software creates what is known as a “multiworld,” where items that normally appear in one game may instead appear in another player’s game. When a player finds an item belonging to someone else, the system automatically sends that item to the correct player through a networked server. This design encourages cooperative gameplay because progress in one player’s game can depend on items found by other participants. Archipelago includes tools for generating randomized game worlds, hosting multiplayer sessions, and connecting players through dedicated clients. The framework supports a growing list of games that have been adapted to work with its randomization protocol.