Recommendations for user 'levelling' system

Question

I am looking for a, preferably open-source, user levelling/ranking system. By this I mean, similar to Xbox Live Achievements, users can complete a certain task, get awarded 'points' and then progress through 'levels'.

EDIT: An even better example is THIS site (is this user system open-source)!!

An example can be see at the top bar of this site, or the one below

http://www.1up.com/

Should ideally be PhP based.

Thanks in advance. James

Answer 1

Take a look at Badgeville.

Answer 2

For other people interested in this there are also a few others:

BigDoor BunchBall uBoost

The general term for this sort of process is called 'Gamification'

Unfortunately there does not appear to be a open-source version yet.

Answer 3

We'd throw in BigDoor; our gamification platform is open, flexible, easy, secure and free! http://www.bigdoor.com/. Our widget, the BigDoor MiniBar is white-labeled and takes minutes to add to any site. You can check it out in action right now on Brad Feld's site: http://www.feld.com/wp/.

Answer 4

Of course I'll have to recommend you check out http://www.IActionable.com

Our API supports Achievements, Levels, Points and Leaderbords. We built a flexible rule engine and complex event processing system which supports simple or complex reward requirements. While not open-source, the API is a very easy to implement REST based service.

Answer 5

Check out UserInfuser for an open source gamification platform: http://code.google.com/p/userinfuser

It has bindings for PHP, Python, Java, and Ruby.