https://www.pcgamer.com/for-the-first-time-square-enix-is-releasing-a-game-on-steam-exclusively-in-japanese/

The last few years have shown that Square Enix is devoted to the PC, releasing nearly the entire Final Fantasy back catalog and new JRPGs like Final Fantasy 15 and Dragon Quest 11 that would've once been console exclusives. Now, in what may be a sign that Japan's PC audience is growing, Square Enix is taking a first step: releasing a game on Steam exclusively in Japanese. SaGa Scarlet Grace is launching on Steam on August 1st, side-by-side with its console versions.

As pointed out by Resetera, this is a new move for Square Enix, and SaGa Scarlet Grace is probably a good game to test the waters with. The SaGa series is infamously complex, borderline impenetrable, and several of its entries and remakes have never been released in the West. There's also a PC connection: the browser-based Imperial SaGa, also only available in Japanese, came out a few years ago.