Fengame
I actually don't agree with this "umbrella" and it was one of the very first things I mentioned to fen way back when I started writing (he disagreed). TiTS is completely and utterly different to CoC in terms of tone; all you need to do for an easy comparison is look at the intro sequences. CoC starts and the first scene is an imp trying to fuck you in the mouth. Immediately, you can go out into the wilderness and get filled with imp jizz, or fight goblins or whatever. In TiTS the usual player experience is probably to wander around Tavros a bit, then fly to Mhen'ga and do town stuff before you ever venture into the wilds. It sets up completely different expectations for the player (and writers), which is really important. The TiTS universe is far more friendly and nice than CoC ever was. The venus pitchers try to talk to you before they fuck you, even. And I don't want to hear any arguments about how the corporate dystopia of TiTS is somehow worse than the literal demon-infested rapeworld of CoC.