itch.io

Did you download from the site or used the itch app thing?

Did you use 7zip or winrar to extract the files for the rar file?

Also the gallery does work but is now locked with passwords/beating the level.

Ah, that happens here too, and just hope it goes.

I couldn't play the v3.03 from the browser either. I had to download the official client from https://itch.io/app and from there install the WebGL/HTML5 version:

For version 4.09 I also had the RAR auto extract error issue. I'm on Windows 10 x64 22H2 with WinRAR 6.21 btw :T