I've always been a fan of Valve's Steam streaming, because it means you don't have to lug your desktop PC around your house or apartment whenever you feel like gaming somewhere else. Though your laptop might not be able to run The Witcher 3 natively - or at least, not very well - it's a lot easier to let your gaming desktop do all the heavy lifting and stream its output to another device, such as the three-year-old laptop you're using from your backyard hammock.