From Adamant Entertainment: I've put their Open Gaming Content for drawbacks online. I really like their system and will be adding more to it. I've been using a different system but now I'll switch to this one.
I'm also working on creating a large expansion of the possession ability including new skills, monsters, rules, and even a deity. I will put some of it online but some will be held back if I deem it worth publishing. If I'm lucky enough to get a publisher the work will mainly be open gaming content and I'll post the rest online after publication. After completed, if it's not worth publication I'll put the whole thing online.