(There's no video for Chat 2.1 yet. Please contribute to MR and add a video now!)
Chat 2.1 is a TCP/IP chat server for Mac similar to IRC style chat.
Chat_2.1.sit (146.97 KiB / 150.5 KB)
Chat v2.1Pre12 / compressed w/ Stuffit
Mac OS 7.x - Mac OS 9.2.2
Emulating this? It should run fine under: Basilisk II