Paradise Island - VR MMO (now renamed to Heaven Island - VR MMO) is available for free from HRKgame.com. This a great game for trading card traders—it drops 8 cards! It has 52% positive reviews on Steam.
This game runs on Windows, Mac OS X, Linux, SteamOS.
You may get an error when claiming your game. If so, return to their home page, log in and then click on their Giveaway link and then it should work fine.
Description
More a Journey in your Inner Self than a game, "Heaven Island" is an experience in which you'll explore wonderful places. The inspiration for the environments comes from the Renzo Piano designs and from the book "Origins of Architectural Pleasure" in which the welfare is of primary importance.
Its actually called heaven island and seems only good for cards =)