Where is The Guardian 12 so I can play it?
The latest version released (seathblack) Blackheart says is the final version. That is V1.0 which was selling for $10.00 USD when I purchased it. I was just as confused as most folks by the version numbers. I though v.12 was newer than v1.0 because of the decimal location. I sent an inquiry about 12 just like you did here and Blackheart responded with info that clarified my confusion. I then bought the V1.0 of the game. It was larger than the previous versions and since it is a reworked build it starts out a bit different from the earlier releases. Just watch the dates. IE: Dec 2022 for TG V.12. TG V1.0 is 2023 for first release. Have to watch the dates or you get shorted by older releases. The one drawback is that when a post says "Is out today" like TG.11 above, note the date. That was "Today" back in September 01, 2022. It is now September 22, 2024. I guess it's too much trouble for sites like itch to remove date expired content like older files that are YEARS older than much newer releases. Of course they will blame developers despite their control of content on their site. IE: Removing games that may appear to meet their standards even if they do not.
As I said in my post 3 months ago. Check the dates on the releases and then look at the file sizes. The latest date with the largest file size is the latest release. The v.10 you refer to SHOULD be the "Reworked" and Final Release of "The Guardian". The actual version number is V1.0.... Any version you find with the decimal before the numbers is an older released update which means they are not complete. IE: V0.12 was newer than V0.11 and of course any "Lower" number like V0.10. Always look at the date of release of that update AND the file size of each release. The larger will usually be the newer unless there is a note attached to the update about any change in file compression or rework of the game that reduced the download size. Usually this surrounds display file sizes or compression methods...
With all the various site political activities we see accross the net over AVN games and content in them some developers are harder to reach so keep an eye out for a note from the developer, including this game, for updates like changes of name or venue. IE; Seathblack, Blackheart, and of course the other sites that support AVN game developers. Some are pay to join and participate like Patreon etc.
Good luck from here.