If the link is not working, try using the right mouse button/save link target as...
You can only log in once at a time on a download server. If you want to download a lot of files at the same time file faster, use bittorrent :)
Important : This file URL is unique for you, if you want to link to this download, you will have to use: https://www.gamersyde.com/video_tumble_vr_tumble_vr_gameplay_1-38360_en.html