Citidel inspired "room based" package. It was one of the only BBS packages for the CoCo that ran at 2400 baud through the bitbanger serial port on the CoCo. (Most packages required a hardware RS232 pak for that speed.) ShadowBBS was in BASIC and made use of a remote terminal driver (link BASIC I/O to the modem) by Ken Johnson, the author of Ultimaterm (a very popular CoCo RS-DOS terminal program of the day). - Allen Huffman