Grumpyface Studios has just updated the iOS version of Silver Award-winning side-on tower defence title Castle Doombad with a huge chunk of new content.
It's called the "Summer Slaycation", and it means there's another 15 levels of TD action for you to get to grips with.
In these new levels, you'll be protecting two princesses from the attentions of heroic types. You'll earn screams quicker, too, to make sure you've got enough power to keep those pesky knights away.
There are also new heroes to kill, new traps with which to kill them, and a new option to randomise your trap shelf. This final element will add a new layer of challenge to levels you've already finished.
As well as handing you all that new content, Grumpyface has put the game on sale. Over the weekend, then, you can grab Castle Doombad for just 69p / 99c. Which is a bargain and a half.
You can check out some footage of the new update above. We recorded it at GDC a couple of weeks ago.