- Fox Interactive was eventually sold to Vivendi, but most of their library was listed as owned by 20th Century Fox, which has since been acquired by Disney
- the second and third games in the series were published by Sierra, who over the years have been owned by Comp-U-Card, Vivendi, Activision, and eventually Microsoft
- Monolith Productions were eventually purchased by Warner Bros., who shut the studio down earlier this year
Just from that list, there's a huge list of media conglomerates that could have an ownership claim: News Corp, Disney, Vivendi, Warner Bros., Microsoft