Wow, an icon of my childhood gone. If you're an affected developer, shoot me an email & I'll be happy to put you in our pipeline.
Icon is the correct term. SimCity had one of the earliest form of DRM I remember. The almost-impossible to Xerox manual (highly reflective paper so photocopies would come black) was used to answer a question the game asked you, about the population of a specific city on a certain page of the manual. Loosing the manual was not an option. Farewell Maxis.
And the Sierra adventure games had this form of copyright protection way before SimCity.