Tested with a character wielding a swiss army knife worth of cock of varying lengths. 5-20 inches range. All were transformed into dog cocks with canine peppers. Character is a nine-tails cause magic, this did make it sort of flip-flop between vulpine and canine even though these should just be a flavor difference instead of actually different cock types. Test freak of nature also cums something obscene like 20L, so expect my reviews to be for max cum variants, shouldn't make a difference on whether you knot someone at all regardless of effectiveness. If a subsection isn't present like a area under places, it means I found nothing knot-worthy there. Guess I should mention this won't be exhaustive because there is some gay content I don't touch like Ro'Gar, but I'd say the majority of gay content where the player isn't catching I check out. Open invitation for butt-sluts to check the other side of the coin I guess.

Stuff that could use knotting variants.
Only scenes that end with cumming inside someone and that someone taking the full length of cock will be considered. Scenes that do not meet this criteria do not make sense for knotting.
Camp scenes: Honestly there should probably a knotting scene with pretty much anyone you invite to sleep with you. Drifting off while inside someone is a bit romantic and pretty hot.
	Lovers:
		Arian:
			DP, vaginal, anal, a sleep variant where you knot Arian before sleeping would be good. We already know they like butt-stuff in their sleep.
		Helia: Some what off-topic but when sleeping with Hel and HS having a morning sex scene or a going to bed lewd event would be nice. Might take this up myself in like 2 months. 
			anal
			threesome:
				bimbo Sophie 
		Izma:
			dom vagina, get mounted, Izma's vagina
		Kiha:
			anal, FuckVag, LustyDicking(I enjoy this scene but it is kind of all over the place and over the top. If we touch it someone may want to rework it anyway.)
		Phylla:
			Rework or disable her. I forget she exists after like a week in camp. Also has player quoting and a bunch of other stuff, not nearly as bad as Joy, but I don't think she meets quality control if she was submitted content for this mod.
		Helspawn: "Reaching down with both hands you hold up both your cum glazed mastiff-like, bestial canine dick and your cum dripping meaty, bestial dog-cock." jfc I get it.
			marathon(riding. Also can we get the option to not eat our own cum in this scene?)
	Followers:
		Ember:
			Anal, vaginal, lustyfuck, oral?(personally I think it's hot and Sophie already has a scene with it so its not new, and the way Ember finishes that scene she would absolutely be knot deep. If its loli ember even more reason for her to get stuck.)
		Holi:
			fuck holli(I guess you could put a knot in the tree's flower? not sure about this one.)
		Shouldra: Nothing, but scenes with big vala should reset her lust. Did 2 big vala scenes and 2 nights later got turned into Edward Penis-Hands.
	Slaves:
		Amily: I don't know about her lover content because I am a monster. Also there is an enormous amount of player quoting in corrupt content that needs reworking.
			getBJ, anal, vagina
		Bath Slut:
			Milktime:fuck(this one is espicially bad because it calls out you driving your dog cock to the hilt... then pulling out a few seconds later before napping with her. God damn it if knots are good for one thing other than breeding it is after sex cuddles, and sleeping while still inside someone. There is also room for an expansion of bath slut to knock her up, I don't see anything stopping you from breeding her properly and have children.)
		Ceraph: Has a weird amount of cumflation causing belly buttons to pop out... I like cumflation but the belly button thing is odd to me.
			fuck pussy: “Thank you... you’re such a good dom for a horny bitch like me.” If that is the case why aren't you knotting her like a proper bitch should be?, Penis magic: doesn't really need you to knot her but there should be some consideration to the incompatibilities of knots and sliding cock rings., defeat her[fuck her, fuck her ass(Mainly in the form of absolutely ruining her asshole, either by knot-fucking or forcing it out to gape her)], Roleplay[Dominika, marble(I'm a fan of cum inflation and cum through, but this one is fucking bonkers. I guess its technically all an illusion?), Urta(multicock also if we are ambitious)](shout-out to Satan for being the only Ceraph roleplay to remember knots)
		Jojo:
			same quality as Phylla except the scenes are much shorter.
		Sophie: more player quoting that needs fixing. I'll check out non-bimbo Sophie when I cover dungeons. I usually just prefer shoving bimbo liqueur down the mid-tier dommy-mommy wanna-be's mouth.
			rough fuck, anal, morning sex scene(This one is kind of a maybe but I think it would be really funny if the bimbo "accidentally" knots herself on the player and this takes up the first hour of the day. It would also be very in character.)
				DAUGHTERFUCK: This whole goddamn thing needs a rework. I am tempted to rebuild the harpy incest from the ground up and try to get some proper inbreeding into the game. Maybe after my shark daughter expansion I can move on to yet more daughters to fuck, I think I have a problem but in a place like this it is a solution. If I later commit to this we are deleting all the current harpy incest(besides the the marriage and cunnilingus, that can stay) and making our own, with blackjack and inbreeding!
		Vapula: Too much player quoting. Has some threesomes which is nice. Really could use more integration and polishing. Like why is she invisible to Kiha? Kiha would either behead her or abandon your camp. Kudos for multicock support beyond the first two, nice attention to detail.
			feed, fuck her, threesomes[Amily, jojo:buttfucktrain]
Places
	Cathedral:
		Gargoyle:
			use her, vaginal
	Great Tree: Aiko: nothing but shout out to the writers for doing a good job. Yuribot did some rewrites but I'm not 100% on which they did. Otherwise Kudos to Wedge Skyrocket.
	Moth Cave:
		Sylvia: Her mating press scene has knotting which makes me curious if the others not having it is intentional or an oversight from Mothman. If this somehow reaches them I would greatly appreciate their opinion on the matter of whether we should add more to the moth scenes or if this was deliberate. Either way the moths are a great addition and are very much appreciated.
	Oasis Tower:
		Minerva:
			fuck her butt, fuck cowgirl(After sex cuddling while staying inside her? The lack of knotting here is a goddamn sin, and not the fun kind of sinning we usually do here.), restrain fuck, get BJ(I'm actually surprised for the hyper cum variant she actually keeps her lips wrapped around your sheath for the minutes you spend stuffing her face with cum. Might as well knot her mouth and keep her cheeks bloated on cock for a spell while you pet her for being a good girl.)
	Tel'Adre: Fuck me I wasn't looking forward to this one, I already knew this was going to be a pain in the ass to check EVERYONE.
		Shops:
			Tailor: Victoria
				It is a bit funny that you can have her fly off your cock like a bottle rocket if you stuff her enough, but if you are going to the hilt like the scene says I'm pretty sure a knot could keep her anchored before you both pass out.
		Piercing: Yara
			Scene has her slam her full wait into your lap just before cumming in her. That's a knotting.
		Carpenter: Zebra-morph: There isn't actually anything here to write about, but there is a missed opportunity for someone to write a sex scene as one of the quantity options for "buy wood."
		Bakery:
			Rubi:
				fuck
		Bar:
			Vala:
				you: It's kinda funny she lifts you up in this scene by flying, it would be funnier if you were stuck in her by the knot the whole time and couldn't escape.
				Big you: I had forgot about these and how insane Shouldra's content is.
					Vapula 3some: "You’re lifted up high, which only serves to slide one of your dongs even harder into your flawless faerie-skin" Isn't the faerie-skin Vala's not yours? With the way this scene is written it would also only take like 5 words to seemlessly integrate a knotting. Could also use a variant for high cum output where you flood Vapula's cunt before the rest back blasted directly on to the tongue you're wrapped in then down Vala's throat, could even get her cum high since she is a faerie. Multi-cock support if we are being ambitious.
			Katherine: I'm going to put all her scenes here I think. Probably more relevant to group scenes by character rather than location. Also her content in general has a lot of "porn(hentai/furry really) logic" stuff that isn't realistic. Personally I'm a fan and I fuck with this bat shit crazy horny fever dream writing. There also seems to be a hint at some unfinished content between her and Helia in one of her talk options.
				Drink:
					See Vala:
						dbl stuff(scene is kinda crazy tbh but I'm into it. If Kath can knot her cunt why can't you knot her ass? you could spend some quality time with them while a third of Vala's volume is occupied by cock.)
					See Urta:
						dbl pen kath, roast kath, 369, 
							pin and fuck:
								stuff kath
							sandwich:
								get licked
				sex:
					penetration:
						vagina, anus, both, sucknfuck(could also add dbl pen for multicock)
		Gym:
			Lottie: I think someone mentioned wanting to change some stuff about her anyway? Either way we should probably remove every sentence that includes "bacon shake"
				Anal, reverse cowgirl(honestly this blurb of a scene should get a whole overhaul.), 30minorgasm(needs a re-do too much player characterization, also being stuck in someone for 30min should be nothing new for someone with a knot.)
			Loppe:
				cowgirl(this one is sort of tricky as it is a marathon but it should at least mention avoiding the knot or finding a way to continue around it. At the end when she falls asleep being tied would be a nice detail.)
			Brooke: You know I think B! has a type...
				grope:
					penetrate, anal(could also use a high libido variant with a round 2), double pen
			Heckel:
				training:
					be top dog
			Ifris:
				Work out:
					Go all out:
						sex
	Bazaar:
		Lillium: just gonna take a moment to point out the outlandish scenario of knotting two tits... I guess you could try it with Scylla also. This one is too weird for even me to get into it.
I think I finished this part, fuck. I knew Tel'Adre would be a hassle.

From this point on I am using the test build with the knot rework. Save scummed(loading doesn't remove knots, good job. Even tested with obscure things I could think of, restarting application, swapping saves without knots, changing options or doing other stuff in menu etc.) knotty peppers(seems kind of rare and took quite a bit, espicially for getting more than one knot. This is probably fine but worth noting it took around 25 attempts.) until i got a knot on each of 3 human cocks. first is 10in(should be able to knot most things in Mareth considering 8 inches is practically modest here.) second is 25in(this one is just for dick too big scenes or fucking giants i guess) third is 5in(this one is just to be certain at least one cock always fits.) Just mentioning these details for testing purposes. Unrelated but I have no clue why they have a demon score of two despite no physical demon traits.
Suggestions to change the character for better test results welcome.

Another suggestion: Could allow growing a knot with gro+ in lumi's lab machine. Would make it very consistant and easy to get since knotty peppers seem to be rare. This ones up to you, just sharing a thought.

Dungeons will require me to do a new saver or ng+ so i'm gonna put them off for now. I think I'll try to cover repeatable encounters by zone next.
Explore Encounters:
	Explore:
		Alice:
			confront:
				get intimate
					fight:
						Anal, 
		Goblins: Unrelated but it seems like they only have one scene for beating the player, I think there is room for more.
			Dickfuck, jogfuck("she looks heavily pregnant and your cum squirts out of any gap it can find between her walls and your mastiff-like, knotty dog-pecker." this one is a maybe but this line bugs me that she isn't knotted.)
	Plains:
		Gnolls: Nothing. Butt fuck whoever took one of the few tall big amazonian muscle-girls and gave them psuedo-cocks. I will settle for Hel as compensation, but having this big lass butt-fuck you instead of breaking your hips while she knocks her self up is a huge let down.
		Sheila:
			Corrupted:
				Knock-up
				other sex:
					combat lust loss
			Pure: Will do in the 4th edition.
					
		Bunny-Girl:
			Her Vagina
			stuck:
				fuck her: pretty optional but knotting her here could be an entertainingly awkward conversation if someone wants to take that up.
	Deepwoods:
		Kitsune: I like cumflation but isn't their pussy literal hammer-space? There is a scene where you draw a warhammer out of her cunt, and it doesn't even make you the rightful king of England.
			Fight:
				Win: The touch fluffy tail bit gave me an idea. If the player is also a kitsune there could be some tail-play stuff since kitsune tails are apparently quite sensitive. Not my area but potentially good lesbian material.
					Black:
						hotdog anal,
					Red&blonde: Unrelated, Tit fuck claims magically enhanced cum production, results are below average from other non-magical hyper cum scenes.
						fuck ass, bondage
				Loss:
						
		Dullahan:
			Blow job: This scene is already really funny. Imagine the antics and panic if her head got stuck. Unlike the others I don't even want it for erotic reasons, this is untapped comedic potential.
	High Mountains:
		Pheonix:
			Missionary:  "The move buries your shafts inside her as lean over the girl, a frustrated moan coming from her as your bodies press together intimately." missing a word. Also a knotting.
			Anal: Needs a lot more than just a knot, it reads more like a storyboard than an actual scene.
		Izumi: Why is consensual sex as equals something that is only achievable after she powers up like a dragon ball character before you jerk her horn. Then she gets mad when you don't let her take charge? Demanding an apology even? I like big buff girls but the logic in her content is worse than Ember and Kiha combined. Also the scene for winning the fight makes way less sense if it was a lust victory. It also makes her seem retarded when considering how many times the scene might have been repeated.
			fight: Big lass needs a big knot, but power to you if you cad. Room for expanded dialogue due to mandatory cuddling.
				win:
					lets fuck, anal
		Harpy: The description of harpies has me second guessing if you can even get a knot in through the main gate of that cake factory. listing it anyway.
			Anal, Vaginal, oral(a little out of place that this gives you a loss but it makes sense. There are interesting ramifications to plugging a harpies mouth with a knot that won't go soft because of the drug-laced lipstick wrapped around the back of it. I don't know what to do with this one but it is worth pointing out, hell it might be one of the funniest bad ends you could run into.)
	Bog: I'm glad I already covered Sylvia previously.
		Phouka:
			Fuck Faerie (This one would probably actually be a mercy/kindness. If you knot the newly reformed nymph it gives them more time to shift back after the knot deflates, which would at least 'mitigate' the amount of rapings they are in for afterwards.)
		Chameleon: Any one know why they got good lust resistance? Not complaining I'm just curious what makes them so resistant.
			
		Frog girls(dungeon update will include singular)
			anal: "Your seed finally rush their way up your twitching shaft and paint the insides of her quivering butthole a pure white." should be rushes I believe. Could also use a high libido variant where you take the red one up on round two, possibly knotting. While the other two take the chance to leave.
			vaginal: Actually has knotting. Does not do it correctly. With aforementioned swiss-multi-cock I got a line about being frustrated at being too big to knot her, then in the end it describes waiting for the knot to deflate. Code monkeys are going to have to take a look at this one. Also brings up if we should have priority being for largest cock that can fit, or largest cock that can fit the knot.
			Service: Normally I view multi-cock support just as a nice attention to detail usually, but here where you got three fighting over "one" cock is really stands out.
			Lust loss: Nothing, but that was really hot, glad I'm doing this testing, never saw that scene before.
		Marriele: nothing, but I'm gonna take a second to petition the bog temple be added to places.
	Glacial Rift:
		Valkrye: Lets be honest this is probably the only thing in this tundra we expected to make it on to the list.
			Aerial fuck: Room for accidental knotting during the near death experience. Props for acknowledging the player's own wings and how the armor is what gets in the way.
			Anal
	Volcanic Crag
		witch:
			vagina: A part of me thinks she would force you to knot her given the whole leg lock thing. Its also an opportunity to see if they got some spell to deal with that or if you just pass the time with them while your knot ensures they have been properly bred as per their request. Also I'd like to see someone write a bad end where you are not too unruly to be a dedicated breeder. If I get everything I want done and somehow haven't thought of more to do by then I'll consider it.
		Hellmouth: Can we keep her? My desire to adopt things under 4 feet into my camp aside, I adore the comic with her and love her in this game also, cuddle her every time. Check out this comic if you haven't I adore it. https://e-hentai.org/g/983629/69d5ea50f9/
All right yell at me if I missed something. Part 3 done, I am already passing up Valve.
		
Bug report section.↓ Note that some of these bugs are also present in the current version of the hgg mod as well. I'll include these just to point them out but I will mark the ones I think are new to this version with a dollar sign.

Tooltip boxes can't word wrap if the window is maximized. Eg: credits: "See a list of all the disgusting perverts who contributed content for this game" when viewed in a maximized window becomes "see a list of all the disgusting perverts who have"
Long haul exploration doesn't function with the generic explore area. This one is probably a known technical limitation or something but I'm making an effort to be thorough.