Welcome to YARN where an @ is you!
Yarn is "Yet Another Roguelike eNgine" which is being used to create the game Swordstone.
For the time being the two are in parallel development so every release of Yarn is also a release of Swordstone.

Yarn comes in a number of flavours, the most recent version of which can be found at the following links.
There is a javascript version that can play online. However this version is only recomended if you are using a recent firefox or opera browser. Chrome I'm afraid gets itself confused : http://wet.appspot.com/yarn/swordstone
Windows installer : http://get.4lfa.com/yarn.v11.951.exe
This is just an installer for windows users, it's contents are the same as the Linux/Windows build.
Linux/Windows build : http://get.4lfa.com/yarn.v11.951.7z
Unzip this somewhere and run the .sh or .bat to start.
Love build : http://get.4lfa.com/yarn.v11.951.love
This requires http://love2d.org/ and may be the simplest way to get something running on apple machines.
Android build : http://get.4lfa.com/yarn.v11.951.apk
You will need to download this onto your actual phone so here is a QR code to help do that. You must also set "Enable Unknown Sources" for apks to install. That setting can be found in Menu -> Settings -> Applications
I recomend a phone with a dpad or physical keyboard, touchscreen is supported as a simple dpad but not very well.
You can find the sourcecode on bitbucket : https://bitbucket.org/xixs/yarn
The sourcecode requires some of my other projects... : https://bitbucket.org/xixs
These and older releases can also be found listed at http://get.4lfa.com/
Click here to login with twitter/gmail/etc...
Which browser?
So far I've only tried chrome, it could well be broken on every other one...
I suspect that my best bet is going to be running it on a remote server and just building a javascript client.
Firefox 8 works fine for me, faster than chrome in fact.
It actually feels playable.
Anyhow this is nothing to do with that, yarn doesn't even have a frame rate, it just updates when you press a key.
In other news it also seems reasonable to play it in opera so I guess it is just something about chrome that is not so good. Especially since it has started spitting up print requesters when it run.