Still readily available in pdf, and both have had new releases as recent as 2018, including a whole new setting for Aftermath (a post-asteroid impact apocalypse) and two new Sector Atlas books for the Space Opera setting. FGU's been prone to long breaks between releases since their long dormancy in the 80s and 90s, but dead these are not, nor is Fantasy Games Unlimited.
The old company 'Fantasy Games Unlimited' had games like Villains and Vigilantes or Other Suns, and I at least saw Other Suns on DriveThru.
Other Suns is one of the few games they made where you can't get the core rules any more, although they still sell the Anderson Shipyards (and nothing else) through their site. If you saw it on DTRPG I'd love to get a link, since it's on my list of oddities I might revisit someday. V&V still has fan base, and has almost 60 supplements from FGU on DTRPG as well as the other stuff made by Dee & Herman through Monkey House Games, including several editions of the core rules (which FGU no longer has the rights to, just the trademark on V&V itself).
Author is posthumously revealed to have used a pen name to sit on the board of a real world terrorist organization and write 'Nazi' literature, as well as be the son of a '5th columnist' operating for Nazi Germany during the years before WWII. (Empire of the Petal Throne)
M.A.R. Barker did turn out to be a monster, but that hasn't led to everyone abandoning Tekumel, or even EPT. Myself I can't "kill the author" dead enough to ignore the setting's ties to him, but others feel differently and are too attached to what was arguably an important piece of gaming history to leave it behind because the creator turned out to be what he was. Various rule sets for Tekumel roleplaying still have their fans, with the most recent being Jeff Dee's (yep, the V&V co-creator again)
Bethorm.
Good lord. I Googled this, and...wow, that is truly horrifying. I guess it's the author's bad luck that he didn't live long enough to be part of nu-TSR.
As bad as it is (and it is really bad) the thing that really gets under my skin is that at least some of the members of the
Tekumel Foundation knew about Barker's "second life" for years and kept it hidden from the broader fan community to avoid exactly teh kind of reaction that happened once it came out. Quite possible that we still wouldn't know if it weren't for one dissatisfied whistleblower who'd once been part of that inner circle of Barker enthusiasts.