
Alzrius |
It depends, considering that what's allowed for each rating seems to change over time.
There's very little sexual content in Tsar (maybe a succubus or two?), but if you're worried about violence...that can kick it up fairly high. Some of the monsters and undead are not only vicious, but frightening in their appearance and tactics.
I'd say Tsar is rated R. If you make an effort to tone down the worst creatures, and wash over some of the back-stories, you can probably get it down to PG-13 though.

Fionavar |

It is rated HMFAS
"Hardcore mother fing awesome sauce!"
Indeed! I just finished my 4th GM session. Party returning from first foray into the Ashen Waste and have definitely delved into the nuances of mature themes and what's evil and what's good in a away that is implicit in this adventure. Depth of ambiguity is powerful and - imo - requires an ability to be comfortable in some of the mature content beyond the violence.