When the squirrel god – god of squirrels? I’m a little fuzzy on the specifics of this particular theology. No pun intended – sees a lone bushy-tailed critter dragging itself through the desert, he bestows it with a special acorn that creates a rather large tree. This tree becomes an oasis and eventual home to other wayward squirrels; constantly growing to make room for even more denizens. It’s similar to Tiny Tower, no doubt, but Chillingo‘s Happy Squirrels is much more than a simple re-skinning of a familiar concept.

As the tree grows and floors are added, players are able to choose what rooms they would like to create from a total of 25 different options. These rooms can earn nuts, the game’s main form of currency, at different rates and with different caps on how much they can hold. Each chamber can also be upgraded up to five times, with each iteration able to earn even more, faster. These munchies can be used to purchase new rooms and otherwise expand the tree. Potions, the other form of “kinda” currency, are needed to speed things up if players don’t feel like waiting X-number of hours for construction to finish. Or they can be exchanged for more nuts. Whatever the situation demands.

What really sets Happy Squirrels apart is its level of interactivity. At any time the iOS device can be jostled or titled in order to make the tree’s occupants jump or slide around, respectively. A number of other cosmetic interactive touches such as doorbells to ring, as well as a couple of acorn-earning mini-games, make it feel like there’s always something to do while waiting for the workers to finish their tasks.

Happy Squirrles will be setting up shop for free sometime this summer.