Is there, or can there be, a download version, for offline play?
Unfortunately itch.io's webpage does not allow the playable file to be downloaded (I have no control over it) but it can be downloaded through itch.io by using the itch.io's app. If you prefer to not use the itch.io app to download, you can easily download the game through my discord server or go to my FA account, sofurry account, weasyl account, pillowfort account, or blogspot account which will have a dropbox file link and a mega file link to download the game when you view the game's submission post. (And it's also available to patrons/subscribers on my Patreon and subscribestar.)