Gamification Tools

Does anyone know of any gamification apps, widgets or tools that work with Ghost?

Objectives: To award badges and points to blog members for every action they complete; commenting on posts, sharing articles, referring new members, etc.

The only tools I’ve found are for Wordpress, nothing else.

Hope someone has a few suggestions :)

I’m going to bump this once to see if anyone can help. I still cannot find tools like this. Thanks