| Background | Startup | Examples | Rules |
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In our celebrated role-playing PBM UNEXPLAINED, players take on the roles of a party of operatives of the Society for the Investigation of the Unexplained (SITU). There are a lot of strange things out there, and SITU operatives are usually to be found slightly too close to most of the strangest ones.

As the players' characters progress, investigating mysterious occurrence after mysterious occurrence, sometimes with their familiar adventuring comrades, sometimes with new party members, they gradually rise in Illumination and become increasingly privy to the true natures of the conspiracies underlying the world of the UNEXPLAINED -- and, perhaps, the true nature of their SITU masters!
A dedicated research body very much into crop circles, UFOs and the like. Gives you a rough idea of the outer levels of SITU.
A clearing-house for strange and unexplained phenomena, supposed to be re-opening this summer when the owners get back from Roswell.