Adven-80 was described in the article
"Adven-80, An Advanced Adventure Development System",
by Peter D. Scargill, from Dr. Dobb's Journal, #61, November 1981.

# adven-80.arc

Source code for Adven-80 by Peter D. Scargill, plus a
sample game by Robert W. Rasch.
Requires a Z80-based CP/M system or emulator.

# adven80.zip

Source code, manual and sample game for Adven-80,
written by Peter D. Scargill.
Requires a Z80-based CP/M system or emulator.