How to Fix Vac Was Unable to Verify the Game Session in CS2

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How to fix CS2 VAC was unable to verify game session error.

Did you get an error message that VAC was unable to verify the game session in CS2? Let’s see how to fix it easily.

The best solutions for this error include verifying the integrity of game files, running the game as an administrator, removing launch options, and playing a bot match before queuing up.

In this guide, I will explain how to fix the “VAC was unable to verify the game session” error in Counter-Strike 2 to help you get back into playing.

Combine this with our guide on how to unlock competitive mode in CS2 and you’ll be ready to queue up for your next game.

VAC Was Unable to Verify the Game Version in CS2 – How to Fix

How to fix CS2 VAC was unable to verify game session error.

If you’re facing the ‘VAC was unable to verify the game version’ error in Counter-Strike 2, here’s what you can do to fix it:

  1. Verify game files: right-click on CS2 from your library, select ‘Properties’, ‘Installed files’, and then ‘Verify integrity of game files’. Wait for this to complete and try again.
  2. Restart Steam: another solution is to completely restart Steam. Close the application and open Task Manager (Ctrl+Shift+Esc). In the Processes tab, close everything with steam on its name.
  3. Run CS2 as administrator: right-click on CS2 from your library, select ‘Properties’ and ‘Installed files’ and then ‘Browse’. From there, right-click on csgo.exe file and select ‘Properties’. Navigate to the Compatibility tab and ensure that ‘Run this program as an administrator’ is checkmarked.
  4. Check launch options: right-click on CS2 from your library and from the ‘General’ tab, make sure the Launch Options box is completely empty.
  5. Start offline bot game: surprisingly, what seemed to work for many players is starting an offline bot game from the main menu and then queuing up for premier or competitive.
  6. Reinstall CS2: If nothing else works, the only option that’s left is uninstalling CS2 and reinstalling it. This will take time depending on your download speed but if nothing else works, it’s your best bet.

Different solutions worked for each player so you might have to try everything before your issue is fixed.

How to fix CS2 VAC was unable to verify game session error.

If nothing else works, you can also consider messaging CS2 support or waiting until the game releases a new update, which should be fairly soon.

After all, the game was only recently released and still might be facing some server or performance issues.

As you’re experimenting with Steam options, consider also checking out our guide on how to play CSGO after CS2. It is still possible to access your old workshop maps or play FACEIT if you want to.

Wrapping up

To sum up, you can fix the ‘VAC was unable to verify the game version’ error in CS2 by trying all of the above solutions until one works for you.

Verify the integrity of game files, restart Steam, run the game as an administrator, check launch options, start an offline bot game, or reinstall the game.

Which solution worked for you? Do you have any other ideas to recommend? Feel free to share your feedback and suggestions in the comments below.

Now that you’re able to play again, check out our guide on how to get crates and keys in CS2 to start unlocking some rare skins.

Harry
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