Astral Masters is a fantasy-themed trading card game (TCG). In other words, it's something like Magic: The Gathering, albeit simpler. It has two big things going for it: First, the interface is slick. Unlike some digital TCGs that try to replicate the tabletop TCG experience too closely, it's easy to figure out what each card does and how to deploy it effectively. Second is the price--a mere $20. Magic Online charges you by the card, and your cost can accumulate pretty rapidly; many other TCGs also have a "boosterpack" or subscription model. For a reasonably low, fixed price, you can play Astral Masters forever.