The easiest way to make your own Session is to use an existing Session as a template. While the specific graphic design elements of a Session are never very important, I minimum of stylistic consistency can help your chances at Directory inclusion.

While designing a Session, the single most important factor is that it be reproducible. If your Session requires special tools or skills to make, it's not going to make the cut. And while it can require simple objects that can be found around a home, be careful not to overestimate what the average home contains. Paperclips are fine, feather dusters are not etc.

Sessions are also always playable and always winnable. This means the rules need to make sense and the win condition needs to be achievable and non-random.

The score itself must also relate, in some way, to some social or psychological system. This is the hardest part and it's hard to give good guidance on it. Best advice I can give is only try to make a Session when you have a reason to make a Session, when you observe something that just doesn't feel quite right and a Session seems like the best way to work it out.

Once you've designed your Session, playtest it with some friends. Make sure you get several second opinions. Then go back and change what wasn't working or what didn't come across.

After you've reached a point with your Session where it feels like it could really be working, that is the time to send it to the Directory. Email your Session as an ODT file to art (at) charlesbass (dot) net and put SESSION SUBMISSION in the title. If your Session seems interesting, you will receive a return email and we will begin deliberating on the official Directory designation for your Session.

Good luck!