Would that really be that much work? Call it's "Royal Adventure" or some such....change the character names, and be done with it. There's nothing that prevents them from making a Sierra "like" adventure game. I've always been mystified when some fan group works for years to build a game and gives up over a C&D because they are obviously violating the IP of the holder. Don't drop the project! Just change the particulars!
This sounds similar to Starlight, which the NSA uses for all kinds of "connect the dots" type intelligence activities.
In my experience Palantir has a lot to offer. But Starlight is definitely the more powerful tool. I've even seen cases where Starlight handled all of the data processing and analysis work before it was fed into Palantir since it's capabilities where so much better.
I'm watching it right now on Hulu...
Great, the mice of NIMH will be escaping to the rose bush in 3...2...1...
Understanding is always the understanding of a smaller problem in relation to a bigger problem. -- P.D. Ouspensky