You can open more than one Roblox window on the same computer, but the method depends on whether you're using the official launcher or a web browser

The Roblox launcher — the program you download from roblox.com — normally closes any existing Roblox window when you try to open a second one. To run multiple games at once, you need to either launch from your web browser instead, use a workaround with the launcher, or run the launcher multiple times using a command-line trick. Each method has trade-offs in performance and setup time.

Your computer needs enough memory and processing power to handle multiple games running at once. Most modern computers can run two Roblox windows without trouble, but three or more will slow things down noticeably. If your computer is already running other programs — Discord, Chrome, Spotify — adding multiple Roblox windows will make everything slower.

Key Takeaways

  • Opening Roblox through your web browser (Chrome, Firefox, Edge, Safari) lets you open as many windows as you want without any special steps.
  • The official Roblox launcher closes previous windows by default, but you can bypass this by holding Shift while clicking the Roblox icon or using the command line.
  • Each additional Roblox window uses significant memory, so running more than two or three games at once will slow your entire computer down.
  • Web browser windows are slightly slower than the launcher but more flexible for opening multiple instances.

Opening multiple windows through your web browser

The simplest method is to use your web browser. Open Chrome, Firefox, Edge, or Safari, go to roblox.com, and click Play on any game. Once that game loads, open a new browser tab or window and play a different game. Each tab or window runs independently, so you can have as many open as your computer can handle.

Browser windows use slightly more memory than the launcher and may run a bit slower, especially if you're playing graphics-heavy games. But there's no setup required, and you can switch between games by clicking tabs instead of alt-tabbing between windows. If you want to keep games side-by-side, open each in a separate browser window rather than tabs — right-click the game link and select "Open in new window" instead of "Open in new tab".

Using Shift+click to bypass the launcher's single-window limit

If you prefer the official launcher, hold down Shift on your keyboard and click the Roblox icon or shortcut while a Roblox window is already open. This tells the launcher to open a new window instead of closing the existing one. You can repeat this as many times as you want.

This method works on Windows and Mac. Each time you Shift+click, a new launcher window opens, and you can join a different game in each one. The launcher is faster than the browser for most games, so this is worth trying if your computer has enough memory.

Opening multiple launcher windows from the command line

On Windows, you can also use the command line to open multiple launcher instances without holding Shift each time. Press Windows key + R, type cmd, and press Enter. In the command window that opens, type the following line exactly:

start "" "C:\Users\[YourUsername]\AppData\Local\Roblox\Versions\version-[numbers]\RobloxPlayerBeta.exe"

Replace [YourUsername] with your actual Windows username. The version number in the path changes when Roblox updates, so you may need to check your AppData folder to find the current version number. Each time you run this command, a new launcher window opens. This method is faster than Shift+clicking if you plan to open many windows at once, but it requires more setup.

What happens to your performance when you run multiple games

Each Roblox window uses between 300 and 800 megabytes of memory, depending on the game. If your computer has 8 gigabytes of RAM, running two Roblox windows leaves you with only 6 to 7 gigabytes for everything else — Windows itself, your browser, Discord, and any other programs. Running three windows on 8 gigabytes of RAM will cause noticeable lag in all your programs.

Your graphics card also matters. Games with detailed graphics use more GPU power, so two graphics-heavy games will slow your computer more than two simple games. If you're playing on a laptop or older computer, stick to two windows maximum. If you have a newer gaming computer with 16 gigabytes of RAM or more, you can usually handle three or four windows without problems.

Keeping games running while you switch between windows

When you click away from a Roblox window to another program or window, the game keeps running in the background — you won't disconnect or lose progress. This is true whether you're using the launcher or the browser. You can play one game, switch to another, and come back to the first one without any issues.

The only exception is if your computer runs out of memory and starts using your hard drive as backup storage (called "virtual memory"). This happens when you have too many windows open at once, and it makes everything extremely slow. If you notice your computer becoming sluggish, close one of the Roblox windows to free up memory.

Troubleshooting when multiple windows won't open

If Shift+clicking doesn't work, make sure you're holding Shift before you click, not after. The timing matters — click while Shift is pressed down. If the launcher still closes the previous window, try the browser method instead, which has no restrictions.

If you're using the command line method and it doesn't work, the most common reason is that the version number in the path is wrong. Open File Explorer, go to C:\Users\[YourUsername]\AppData\Local\Roblox\Versions\, and look at the folder names to find the current version number. Copy the exact folder name and paste it into the command, replacing the [numbers] part.

On Mac, the Shift+click method works the same way. If it doesn't, try the browser method — Safari, Chrome, and Firefox all work well for running multiple Roblox windows on Mac.

Frequently Asked Questions

Will I get banned for running multiple Roblox windows?

No. Running multiple windows is not against Roblox's terms of service. You're allowed to play multiple games at the same time on the same account or different accounts. Roblox only bans for things like exploits, scams, or breaking game-specific rules.

Can I run multiple windows on my phone or tablet?

Not in the traditional sense. The Roblox mobile app only lets you play one game at a time. On iPad, you can use split-screen to run two apps side-by-side, but one of them would need to be something other than Roblox. The browser method works on mobile, but it's awkward to manage multiple browser tabs on a small screen.

What's the difference between opening multiple windows and using alt-tab?

Alt-tab switches between windows that are already open, but you're only playing one game at a time. Multiple windows let you play two or more games simultaneously — both games run and progress at the same time. If you want to play two games side-by-side, you need multiple windows, not just alt-tab.

Does running multiple windows use more internet bandwidth?

Yes, but usually not enough to matter. Each game uses between 1 and 5 megabits per second depending on how much is happening in the game. Two games might use 5 to 10 megabits per second total. Most home internet plans have speeds of 50 to 500 megabits per second, so two Roblox windows won't cause lag from bandwidth alone unless your internet is very slow.

Can I record or stream multiple Roblox windows at once?

Yes, but it's complicated. Programs like OBS can capture multiple windows in one recording, but you'll need to set up scenes and sources manually. For streaming, most people record one window at a time. If you want to show multiple games, you'd need to either record them separately and edit them together, or use advanced OBS setup with multiple sources visible in one frame.