I don't know any wordpress plugin developer personally so I am writing my idea here maybe someone will like it and start creating this plugin.
I want a plugin which will allow the registered users to:
* create quests (or you may call it opportunities)
* Set points for the quest
* Set a "password" for the quest
* Take quests
* and then, after doing this quest in real life or on the internet outside of this wp-site and getting the special code (password), they will enter this code in a field of that taken quest and the quest will be approved automatically.
* They get some points for doing the quest
"New Quest" link is supposed to be located as "New Post" link is.
I mean, it should have a separate menu.
If I knew some php coding I would do it myself. I have it clearly imagined in my mind.
I am even willing to donate some $$ for this plugin but I don't know who to address.
So maybe someone will like the idea.. :)