Cygnus Entertainment was formed by Ken and Roberta Williams, who are best known as the founders of Sierra On-Line, a legendary publishing company that they founded in 1979. Ken ran the company and Roberta designed many of the hit titles over a 20-yearperiod prior to selling the company and retiring. During that time Sierra On-Line dominated the industry bestseller charts releasing over 200 titles, including King’s Quest, Space Quest, Half-Life, Ultima, Red Baron, Half- Life, Nascar, Quest For Glory, Dr. Brain and many others.
In 2020, the Williams decided to re-enter the games business creating Cygnus Entertainment. Their first product is a complete reimagining of the game that launched Sierra On-Line, Colossal Cave.