It may be possible to play Roblox on your Playstation 4 or Playstation 5, depending on which version you have. The latest Playstation, the Playstation 5, is able to run certain Roblox games with an improved performance. However, the Playstation 4 may also work, but only certain games will be available.
To determine if your system is compatible with Roblox, you'll need to check the system requirements for each game. You'll also need to make sure your system has the latest patch updates and is running the latest version of Roblox.