Yes, you can play multiplayer games on GeForce NOW. The platform supports many popular multiplayer games, including Fortnite, Apex Legends, PUBG, Call of Duty: Warzone, and many more. You can play these games with other players over the internet, just like you would on a local gaming setup. However, the quality of the multiplayer experience may be impacted by factors such as internet speed, latency, and network stability, so it is important to have a fast and stable connection to get the best results.