[dotancohen]

The Anki deck Ultimate Geography is pretty much this game and more:

https://ankiweb.net/shared/info/2109889812

It works on the phone with AnkiDroid too.

[sundarurfriend]

I didn't know about Ultimate Geography and have been using https://ankiweb.net/shared/info/2915332392 deck instead. UG looks like a moderate upgrade over this deck.

I do prefer the maps in the deck that I linked to though. Both have their pros and cons, but I get a better feel for the location of the place from these maps compared to the UG ones (at least the ones in the sample notes).

[dotancohen]

Very nice, thank you!

[tra3]

I was going to link this as well. The app in the link is nice, but Anki is way more conducive for this task.

[addingnumbers]

If you frame it as witnesses and informants giving you clues where a criminal has fled, this would also be essentially the same as the first Carmen Sandiego games.