.hack//frägment is a multiplayer online game based on the fictional MMORPG portrayed in the .hack franchise. It was made as a joint project by Bandai and CyberConnect2. It was released in Japan on November 23, 2005. The online service for .hack//frägment was terminated at the end of November 2006, when the servers were taken offline. Bandai announced at E3 2006 that there will be no U.S. release for frägment.
Once the player has created their character, players may enter a lobby and search for up to two other players to join them on an adventure. The maximum party size in .hack//frägment is three, just like previous installments of the .hack video game series. The game includes an extended online interface that allows players to chat, send e-mail, post to an in-game BBS, and receive server news updates. The email inbox is restricted to only 50 messages, however, so once the number of emails exceeds 50, the game will automatically start deleting old messages. It is also possible to establish individual chat rooms, separate from the public-access ones. When everyone logs out of a chat room, the chat room will be eliminated automatically.