The Wiki Game is a game in which you learn whilst having fun.
You get two Wikipedia articles. Your goal is simple; Reach from one to another, by clicking the hyperlinks in the article.
On your way, you will read about things you've never heard of, and have an opportunity to explore the very deep Wikipedia!
And if having fun isn't good enough to motivate you into playing this game, have in mind that revenues from ads in this app will be donated to Wikimedia Foundation, Inc. So why not giving it a try?
DISCLAIMER - I am not affiliated with Wikimedia Foundation, Inc., nor with Wikipedia.