It’s similar to other services like Google’s seemingly ill-fated Stadia or Microsoft’s XCloud service in that it enables top-tier gaming without access to a physical console or beastly gaming PC.  The $5.99 Luna+ price includes more than 100 games that stream right to your devices with help from the Luna Controller. If you’re already a Prime member or you sign up, you’ll get a small, rotating collection of games for free as part of your subscription. If you’re willing to pay a little extra money, you can get access to other “channels,” which offer more games. For instance, there’s a Jackbox Games channel, which includes access to the company’s nine popular party titles for $5 per month.  The Retro channel seems like one of the best values. You get classic games like Street Fighter II, an entire collection of Contra games, a bunch of Castlevania games, and more vintage goodness for the same $5 per month.  If you really want to test the performance limits of the service, though, the $18 monthly Ubisoft+ subscription includes AAA titles from the Far Cry, Assassin’s Creed, and Watch Dogs franchises. It also includes a handful of other games that would never run on a cheap tablet or a lowly streaming device without help from a cloud-based streaming service like Luna.