Sometimes, but not often.
All games are subject to legal agreements with our publisher and developing partners. These contractual rights vary per country or territory and are subject to price alterations as well as expiration dates. When these rights expire or changes occur altering the contract then games must be removed.
We always do our best to provide subscribers with as much advance notification as possible as to when a game is going to be removed through notifications. Games scheduled to be un-published from Utomik are labeled with a Calendar icon. You can see the due date on the game info page:
If the game is already fully loaded on my PC, does the game still disappear on that date?
Yes. Even if the data is still on your hard drive, you will not be able to play the game anymore. It needs to be available on the Utomik service in order to start.