Saw people talking about this on 4chan, apparently the bankers have gone to war with the porn game devs. Full standard CC ban on DL site, a mix between steam and GOG for Japan. Site includes both sfw and nsfw games. This is a continuation of their prepaid ban they made a few years back.
Link to company statement (will need translator)
Nigga what the fuck is a porn game?
Visual Novels, Custer's revenge style platformers, tranime waifu creators, excel spreadsheet dating sims, typically from Japan. Whenever you hear someone talking about gooning for 8 hours, chances are it's not porn porn, its some tranime HRPG. Generally poor quality. I'm imagining 50 shades of grey written by a repressed japanese guy who wants to fuck his cousin.
Why is this significantly different from other bans?
This sector lacks physical women completely, making the companies immune to the usual concern of being involved in trafficking or sexual abuse. These games can be found on a variety of other platforms, including steam.
What specifically was the reason for the ban
It appears to be due to "loli" content, at least they think, because DL site changed the tag "loli" into the Genshin Impact politically correct term "Petite".
Are there work arounds?
Yes, but it seems pretty damning. Techniques seem to involve using man in the middle services, which have their own issues. Basically the same state Null is in, IDK who pays for porn but I don't know how far they are willing to go to give money to things they could pirate.
To what degree are services affected
It seems like the entire hydra has been hit, as the major company is affect, and their services range from smut to SFW style patreon development.
Ultimate Significance
As far as I am aware this marks the first time the banking clan has deployed the nuclear option on pornagraphic material that ultimately could not be involved in sexual violence. I'm not a porn game expert, but I'm unable to see the difference between this and any of the other sister fucking games on steam.
Motive?
The easiest answer is that in the time it took me to verify that the tag "loli" was changed to "petite" I saw shit beyond my comprehension. The banking clan answer is that by removing the competition, people will have to play the uncanny valley western games that are all about furries and incest, or get pushed to the weird quasi abuse that is real porn.
Or maybe the banks are beginning operation Total Gooner Death. We will see.