You could have downloaded SecondLive 1.38.53.89 for Mac from our application library for free. The actual developer of this free Mac application is SecondLive. The program is categorized as Games.
From the developer:
SecondLive is an application that lets you customize your avatar and create your own content. With this utility, you have the chance to become the icon you desire and free roam in spaces such as exhibitions, dance floors, shopping malls, workplaces, and so on.
You may want to check out more software for Mac, such as Fish Tycoon, OOTP8 or Fashion Fortune, which might be similar to SecondLive.