How can I install the new BeamNG techdemo v2.1?

Nope. the pickup is (techdmo wise) only in the "so outdated that it came out before you could buy the game" techdemo
In this "new" techdemo you can only drive the Ibishu Covet on East Coast USA.

 

but I can't play the new one. My computer doesn't want to open it, I can see just that blue small circle on the right of the imput for a fraction of second and then, nothing happens. Tried at least 30 times.

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Yaaay! East coast is a great map
I am playing with a 7 years old Acer Aspire 5920g with the graphic set on max and no lagging
But on 0.3

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Finally something happened, but BeamNG wont launch!

 

I really need help, I tried all.

 

I really want to buy BeamNG.Drive, but before I need to check if the FPS is ok on detailed maps.
I can't buy BeamNG risking to not be able to play...

 

As said before. You need to extract the entire zip. Your error confirms that you have not.

 

What part of "extract the zip" do you not understand?

Stop trying to run the game from winrar. It does not and will not work. Stop trying to.

Click on "Extract to", which is the top left picture-topped option with the books. Press okay, and then go to where you chose for it to send the folder to, and then run it. You CANNOT use the "extract to" button, then run it in WinRAR. You have to make sure you are launching it/clicking on the exe in windows explorer.

Otherwise, you'll keep dealing with the same issue.

If that's Italian you are using, it's the "Estrarre per" button you are looking for.

 

When I try to run the game OUT of the zip, NOTHING happens. I can just see the blue circle near the input for 1/4 of a second and then... Nothing.

 

Ok. Extract means unpack. So I unpacked the Zip and the tried to run it. Maybe I'll make a video now. Thanks Tdev

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I had problems during the video uploading because of the format.

 

I've done a factory backup to my pc now. So the computer is faster and its easier to capture screenshots: This is what I've done in 6 steps: