Player.IO has moved, and is now part of the Yahoo Games Network.
Don't worry, your games still exist, and your current username and password still works on the new site.
Go to the new site:
More good news - we are listening to your feedback that the current pricing model is complicated, making it difficult for you to predict your costs. We hope you will be happy to hear that on June 1, 2014, we are simplifying it.
Here's an overview:
Read the details of the new Terms of Service. The old pricing model and old Terms of Service will remain in effect through May 31, 2014. On June 1, 2014, the new pricing model and new Terms of Service will take effect without any further action by you. If you do not want to agree to the new pricing model and new Terms of Service, you must delete your Player.IO account via the Control Panel by May 31, 2014, end of day Pacific Time.