Backflip Studios has updated its freemium iPhone and iPad build-'em-up DragonVale for Halloween, adding a host of new themed content.

For a limited time, you can attract visitors to your mythical park with a Bone Dragon, build yourself a Witch Hut, and decorate your attractions with a special Jack-O-Lantern.

Finally, Backflip has treated DragonVale to "various bug fixes and performance enhancements", and has boosted the rewards you can earn from your colosseum. It's now possible to bag yourself some gems - the game's premium currency.

DragonVale can be downloaded from the App Store completely free of charge, but there are plenty of in-app purchases if you want to speed up your progress.

And if you're looking for some hints, tips, and tricks for DragonVale on IOS, here's just the trick.