How dare someone who made a game, is giving it away for free, and someone else is paying for bandwidth decide not to pick the optimal file format for all downloaders?
Heck, if you're using MATE/GNOME on Linux, Engrampa/File roller or whatever they call it opens this and many other formats just fine. I click the link, and a moment later click the downloaded file in Chromium, and it opens right up. From there I can drag and drop into a directory/folder in Caja/Nautilus. Painless.
> p7zip is not anyone's first guess the first time they see a .7z file.
If you're running KDE (and I think GNOME), the built-in GUI de-compressors handle 7-zip just fine.
> Compressing a directory is a solved problem with standard solutions.
shrug 7-Zip compresses at least as well as RAR, and doesn't have a file format that permits feeding executable bytecode to a probably-not-very-well-examined bytecode interpreter. [0]
A video of it in action: https://www.youtube.com/watch?v=j2cMHwo3nAU