Hot answers tagged solo
The Dresden Files, Your Story contains rules for City Creation which can be done by only one person. It's a pretty sophisticated system which can be used to create a city for any period and any setting without much work involved. Unlike How to Host a Dungeon it does not have a form of an actual game though, but it is a very broad tool.
One system that I think is great for this is the Mythic Game Master Emulator. I find that I can use it to generate not only a plot for a solo off the cuff adventure, but also generate the details of a world and its NPCs as I do so. By the time I am done playing my solo session (even if all I have is a couple of scenes), I feel like I have a living world that ...
You might want to take a look at Microscope. It may be too generic / not solo enough for your tastes, but otherwise fits the description to a tee. Some gamers have already used it for this very purpose, too.
Not many! The options consist mainly of experimental indie RPGs and more traditional games from the 1980s. On the indie end of the spectrum, there is Ewen Cluney's Hikikomori, a 24-hour RPG (and hence unplaytested). There is also Jackson Tegu's The Smoke Dream. I've played an earlier version of this, which didn't really work for me, but it's possible he's ...
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