I play this all the time. Well worth getting into so you can turn waiting at the bus stop into a murder investigation helmed by a talking tiger, to pick a random example from hundreds of brilliant Fallen London stories.
Jeremy Peel
I haven't mentioned this all that much, but I have been writing for www.fallenlondon.com and I can't get over how much lore is back there. Millions of words! It's just an immense slab of culture, and a weird object: a story website? In this universe? It's true!