Ultratron, Revenge of the Titan feature in latest Humble Weekly Sale

Today's new Humble Weekly Sale features the works of Puppy Games; details and a pretty great trailer through the break.

Name your own price to receive Droid Assault, Revenge of the Titans, Titan Attacks and Ultratron, plus soundtracks for Revenge of the Titans and Ultratron.

All games are available on Linux, Mac and PC DRM-free, but if you pay more than the average price you'll score Steam keys, too.

As ever, you can choose whether proceeds from your purchase go to organisers, developers or charity - in this case, GamesAid, an industry not for profit which benefits a variety of game-related organisations. To date, the Humble Bundle scheme has raised over $29 million for charities.

You have one week to grab the Puppy Games bundle. Personally, I'm shelling out based on the trailer below.