For the public version, click on "
Play" on the
main website. Then click on the "Download" link for TITS.
For the backer releases, you'll need to log in, then click on the "Backer Builds", then click on the "Download" link for the version you want.
You shouldn't need to right-click to download these. If you're on mobile, you might want some of the various mobile version of the game, available from the Play page or the Backer Build page.