No, now.gg streams the game, so you don't need a powerful computer. Is it free to play Roblox on now.gg? Yes, playing Roblox ...

To play Roblox on now.gg, launch your browser and go to the now.gg website. ... This includes any computer, smartphone, tablet, and even some gaming consoles. Is Minecraft on now.gg?

So if you are trying to launch Roblox to play games but are getting the Your computer graphics card is not compatible with Roblox’s minimum system requirements error, there are a few workarounds.

You can play Roblox at a much higher framerate than normal simply by using FPS Unlocker. ... effort, and money on having a powerful computer there’s always Roblox FPS Unlocker.

If you play Roblox on your Android or iOS smartphones, you must have an existing Roblox account. In this case, you need not create a new account to download and install Roblox on your Windows PC.