What's Unnatural in a basic mid-power low fantasy game?
I'm using the madness meters from Unknown Armies and Nemesis to model mental health in a new campaign I'm planning. The rest of the meters have all adapted easily, but unnatural is proving difficult.
The game world has a modified version of the psionics system from Traveller (thanks soltakss for the idea), and there are a smattering of supernatural creatures (haven't determined those yet). The problem is that Nemesis' meter has examples that are mostly meeting up with eldritch horrors at the higher intensity levels, and Unknown Armies' are suited to modern mundane minds.
So what is an Unnatural stress in, say, a magical equivalent of 15th century Europe/Mediterranean Sea?
Any help would be appreciated, because I'm rather stumped at the moment. Thanks!