Did he ? usually DC don't make promises anymore because he failed so often in the past to hold deadlines, which lead him to the conclusion to say "it's done when it's done".
I read about such deadlines in posts dedicated to the game on this site and, it seems, in one of the posts on Patreon, when the dev apologized for the too long waiting time. But i can’t give any irrefutable proof, so i definitely won’t say this.
The "it's done when it's done" excuse can also apply to Icistor, as he did not give any specific timeline either. Well, just think, he has been doing the update for more than two years, he will release it when "it's done"

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Played a ton of games and didn't see any better in this genre if you know some tell me.
Yes, without a doubt, the STS is one of the best games in the genre. But, for example, the same "Confined with Goddesses" is quite close in terms of the quality of drawing and animation, as well as in the development of the heroines and their interaction with the main character. But this game lacks "scale" - more characters, girls, locations, different possibilities (like pregnancies), etc.
Also, the "sex note" in terms of the quality of animations and detailing can even do the STS, but the game itself is somehow boring, insipid, not interesting. You can immediately view new scenes in the gallery without playing the game itself

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There is also the game "What a legend", but the dev also decided to cosplay DC and in every possible way delays the release of updates, milking his patrons.
I can recommend
EpicLust games, although they are not hand-drawn and perhaps some players will not like the style and design. But the developer consistently releases monthly updates and these games are just a bunch of content.
Again DC is nowhere near to Icstor, Icstor is a complete wasteman he didn't do jackshit for the last couple of years and he was caught lying many times.
I would say that DC has been dead as a creator for quite some time now. DC differs from icistor in that, figuratively speaking, he has a dead brain, but still has residual muscle activity, and isistor has not only a brain, but even muscles have long since rotted away.