FYI: You do not need to download v0.4.3 if you've already played Chapter 4.
Also: Hope everyone is well! I'd love to communicate regularly here on F95Zone like I used to, but it seems like there's quite a few people who're mostly just interested in speculating/complaining about when the game's going to update, or whether or not we're sitting around with a thumb in our bums... sooo you'll have to join us on Discord/Patreon for that. ¯\_(ツ)_/¯ Love you guys.
Let me check ... Monday has past .... NOPE no progress report on Polarity.
Couple of days ... check. No Radiant update.
Wait a minute! Since when is Sir Dammed working on Radiant? I didn't catch that at all! Are Sir Dammed' Eternity Studios and RK Studios the same? This is very confusing. So many front names for different projects and frankly too many projects at the same time for a one-man-show.
Also there should be an update on the front-page of each games threat here referencing those other games.
I'm literally the one who created/manages the game thread for Radiant here on F95Zone. Everyone and their mothers knows I'm working on that game.
Anyway, to answer your question: Eternity Games = my own branding. Any game that I work on alone will be released under that branding/label.
RK Studios = Myself and Alorth. Any game that the two of us work on, together, will be under that branding/label.
These are the only two projects I work on, so I'm not entirely sure what all the other stuff you're saying is about... and I don't really see how this is confusing... but hopefully I've cleared it up!