Chat
.hack//Chat (.hack//チャット) was a .hack-themed chat client, which used MetagateX plug-in and was hosted by VaSaRa. It ran from ?? to 2008.
About
Users could chat in real-time using 64-bit avatars, of which they could choose from a selection of pre-made avatars based on .hack, or upload user-made avatars. Users each could have their own dedicated room, which could be visited by other users with whom they had shared their member addresses (and vice-versa.) Occasional Events and Dungeons were available, and some holidays featured seasonal changes to the graphics of the game.
Initially the game was based on The World R:1, but eventually it was switched to The World R:2.