Puppy Games has a bundle on offer at the moment, containing three of its older titles. For a limited time, you can grab all three for $4.97.

The three games in question are Ultratron, Titan Attacks, Droid Assault. There's no word on exactly how limited this offer is, so if you're interested in grabbing the games, it's probably worth doing it asap.

The beta for Puppy Games' next title Revenge of the Titans is also still available for download if you've not given that a play yet.