Deep Silver previously announced a special edition version of Dead Island Riptide, but they are also offering a limited collector's edition called the Dead Island Riptide Rigor Mortis Edition:

"January 10, 2013 – LARKSPUR, CA – Deep Silver today unveiled the gory details about a special North American Collector’s Edition for the eagerly awaited zombie action RPG, Dead Island™ Riptide. The Dead Island Riptide Rigor Mortis Edition contents were voted in by the Dead Island community in a Fall 2012 survey, which resulted in tens of thousands of entries determining the contents of this exclusive edition.

The contents of the Rigor Mortis Edition are extremely limited and are available for preorder now at retailers across North and Latin America on a first come-first serve basis with a suggested retail price of $79.99. In the haunting, superb-quality Rigor Mortis Edition, Dead Island fans receive their very own zombie hula girl bobble figurine, a bloody zombie arm bottle opener magnet and a bungalow key with a branded wood keychain. In addition, the Rigor Mortis Edition will include a copy of the Dead Island Riptide Special Edition for console, packed with a treasure trove of extra DLC content and a helpful digital strategy map. All of this is embalmed in the ultimate Dead Island replica suitcase – the most iconic item from the original Dead Island.

More than four million players around the world survived the ordeals of the zombie infestation on the once beautiful island resort of Banoi. Our group of survivors thought they had finally found a safe place away from Banoi to escape from this terrifying nightmare.

They were wrong.

Featuring character-import options for fans who want to carry over their original saved games, Dead Island Riptide is the thrilling next chapter in the Dead Island universe. Co-op has never been more important as Dead Island Riptide players band together to defend new, key territories in water-soaked tropical locales against hordes of never-before-seen zombie types. Also, a new playable character class, fresh gameplay mechanics and drivable boats plunge you ever-more into the depths of what’s really lurking behind the deadly zombie infestation….

Dead Island Riptide will be released on April 23, 2013 in North America for consoles and for Windows PC."

We included a look at the Rigor Mortis Edition below and you can catch up on our recent coverage with the following links: