flowchart TD
A["ELIZA (1964-66)
Joseph Weizenbaum - MIT"] --> D["Adventure (1975-76)
Will Crowther & Don Woods"]
B["SHRDLU (1968-70)
Terry Winograd - MIT"] --> D
C["Hunt the Wumpus (1973)
Gregory Yob"] --> D
W["Wander (1974)
Peter Langston"] --> D
D --> F["Zork (1977-79)
Anderson, Blank, Daniels, Lebling - MIT"]
D --> H["Adventureland (1978)
Scott Adams - TRS-80"]
D --> L["MUD1 (1978)
Trubshaw & Bartle - Essex"]
D --> G["Eamon (1980)
Donald Brown - Apple II"]
F --> I["Infocom (1979-89)
Zork I-III, Deadline, Planetfall, etc."]
D --> MS["Magnetic Scrolls (1985-90)
UK"]
D --> L9["Level 9 (1981-91)
UK"]
G --> J["250+ user-authored modules
BBS & disk-swapping networks"]
L --> M["MOOs, MUSHes, MUCKs"]
I --> TADS["TADS (1988)
Michael J. Roberts"]
I --> K["Inform (1993)
Graham Nelson"]
style A fill:#ff9999
style B fill:#ff9999
style D fill:#99ccff
style F fill:#99ff99
style I fill:#ffcc99
style L fill:#cc99ff
