-> MultiPlayer Network Modem DOOM! <-
APCiDOOM v4.0 is a freeware utility for 
DOOM.  It is the client software that 
allows high-speed modem users to play FOUR 
PLAYER true network modem DOOM via the 
APCi MultiPlayer Game Server.  It features 
a chat utility that enables players to 
chat and change WAD files/settings before
and between games.  Supported modes are
modem, serial link, and IPX.  Proper
operation requires DOOM v1.6 or later.
APCiDOOM v4.0 was released on 8/30/94.