Direct2Drive's announced a special offer for anyone who intends to pick up any games between now and the end of the year on the service.
For any four games you can get on D2D between now and New Year's Eve, you can download a fifth title for free.
The offer only applies to those with credit card orders, though.
In other D2D news, the service is offering a price-matching deal, which will also end of New Year's Eve.
If you find the price of a game is lower on other digital retailers like Steam, GameStop and others, you'll get the price difference on it in Direct2Drive credit.