Lost Ark, the South Korean MMOARPG, has proven to be a massive success since its launch in the west in February. Much of its success is driven by its availability as a free-to-play game, which in turn demands a healthy balance of monetization and content. Now that Lost Ark has been available for a couple of months, Amazon appears ready to further explore this monetization balance. In Lost Ark's April Update, it's introducing what it's dubbed the Ark Pass.