Isle of Fall

Name: Isle of Fall
Availability: InStock
Rating: 5.0 (9 reviews)
Author: No Try Studios

by No Try Studios

Uncensored Windows Linux Mac Android

Versionv0.6

EngineRen'Py

Released2025-12-09

Updated2026-04-09

LanguageEnglish

3DCG Animated Big Ass Big Tits Cheating Creampie Groping Horror Male Protagonist Mobile Game Netorare Oral Sex Vaginal Sex

Satoshi and Mary are a couple in love. They were meant to spent a lovely summer together at a certain summer resort, along with Satoshi's uncle, Kendo... However, Kendo is unable to go, and their plans are cancelled. Several months later, Satoshi receives an eerie email from his uncle. In it, Kendo explains how during the Fall season, the Naval Treasure Resort hosts a one-of-a-kind Test of Courage, at a nearby abandoned island. Couples who successfully complete this test are made to participate in a ritual, which is said to bind two people in love for all eternity. Feeling that his relationship with Mary is on the road to stagnation, Satoshi accepts the invitation. Thus begins a kinky, fun-filled Halloween adventure for Satoshi and Mary, along with their friend Hanako and fellow couple Natsuki and Yoshi! Sexy costumes, sexy times, all alone in a deserted island! ...Or that's how it was meant to be. More Spoiler But once they reach the island, Satoshi is quick to realize that things are a bit... off. Within the confines of an old Japanese mansion, where the Test of Courage is meant to take place, strange events keep happening out of sight. The attendants who are hosting the event waste no time in getting closer to the women of the group... perhaps with more sinister objectives in mind. The women don't seem to mind their advances... and Satoshi feels his mind clouded, unable to tell whether the kinky events he keeps finding his girlfriend and friends tangled in are true, or just figments of his imagination. But quickly, it becomes evident that this Test of Courage is anything but innocent... and that the ritual that's meant to happen at the end might not serve the purpose they were told. And at the center of everything is a certain attendant, whose watchful eye seems to have taken an interest in Mary's body... and soul. Will Satoshi be able to uncover the truth behind this ritual, of the spell that has been cast over his clouded mind, and escape that island with his girlfriend's innocence intact? Or will Mary fall for the relentless devil of temptation that resides within that cursed island? ...Well, this is an NTR story. So of course, the latter! (This game contains UNAVOIDABLE NTR )

Screenshots

v0.6 N/A v0.5 Continuation of prior events. 1 dedicated story scene per heroine (Mary, Natsuki, Hanako). 1 Hanako build-up scene. 1 Natsuki build-up scene. 2 Hanako h-scenes. 2 Natsuki h-scenes. 2 Mary h-scenes (one of them extra long). 1 short, repeatable group h-scene. Certain scene have been given a "change angle" toggle at the end to cycle through animations and enjoy them at your own pace. 200+ new CGs/renders (including variations). 70+ new animation/videos (including variations). 20k+ words of dialogue and narration. v0.4 More story developments. Mary map events: 1 Mary x Ayumu h-scene (unlocked after talking to Mary at the beginning of the update). Hanako map events: 2 Hanako x Mirio h-scenes. 2 repeatable variations after checking their respective icons. Natsuki map events: 1 Natsuki x Ayumu short h event. 1 short Ayumu x Hanako h-scene. 1 longer group (Ayumu / Mary / Hanako / Natsuki) h-scene, divided in 3 parts. 1 final Ayumu x Mary h-scene. No new collectable fragments added. No new maps. Rewards still cannot be collected for Fragments. An issue in which sounds would not play properly in certain maps has been resolved. 200+ new CGs/renders (including variations). 50+ new animation/videos (including variations). 25k+ words of dialogue and narration. v 0.3 More story developments. New maps to explore: the basement and its 2 rooms. Mary map events: 2 Mary x Ayumu h-scenes (activated as you walk across the map). 1 non-h scene if you check on them after completing the first task. Hanako map events: 4 Hanako x Mirio short h-scenes. 3 repeatable variations after checking their respective icons. Natsuki map events: 4 Natsuki x Daiki short h-scenes. 3 repeatable variations after checking their respective icons. 1 longer Ayumu x Mary h-scene. 1 final Natsuki-centered h-scene to cap off the update (other girls play a role too). No new collectable fragments added (coming next update!) Rewards still cannot be collected for Fragments. An issue in which sounds would not play properly in certain maps has been resolved. 260+ new CGs/renders (including variations). 85+ new animation/videos (including variations). 28k+ words of dialogue and narration. v0.2 More story developments. New map to temporarily explore: hotsprings. 1 new Ayumu x Rin h-scene (Takumi is present too.) Mary map events: 1 Mary x Ayumu h-scene, with two parts depending on progress. 2 repeatable variations after checking their respective icon. Hanako map events: 1 Hanako x Mirio h-scene, with 3 parts depending on progress. 2 repeatable variations after checking their respective icons. Natsuki map events: 1 Natsuki x Daiki h-scene, with 3 parts depending on progress. 2 repeatable variations after checking their respective icons. 1 more Ayumu x Mary h-scene to cap off the update. From the 3rd Test forward, you can interact with the mirror icon to talk to a Mysterious Person, who will ask you to gather Fragments. Fragments can be gathered across specific maps by finding hidden icons and answer King of Summer-related questions. A total of 5 can be found, counting the story-mandatory one. As of now, rewards can't be exchanged for collected Fragments (this is coming out next update). An issue in which sounds would not play properly in certain maps has been resolved. The amount of waypoint markers has been decreased per map, so traversing isn't so slow. The clickable size of waypoint markers has been increased. 150+ new CGs/renders (including variations). 55+ new animation/videos (including variations). 25k+ words of dialogue and narration. v0.1- Initial Release Initial release of 'Isle of Fall'. Halloween/Horror-themed spinoff of 'The King of Summer' (not strictly necessary to have played the original game to play). NTR content focused on finding events across interactable maps, with Mary, Hanako and Natsuki each being paired up with a different antagonist. Find these events, participate in hide-and-seek segments, avoid (or trigger on purpose) Bad Endings! Although events will still progress to have our protagonist lose his love interests little by little. Introduction of a new antagonist: 'Ayumu' . Re-introduction of two antagonists, formerly known as part of the Bro Gang: 'Mirio' and 'Daiki'. Currently 6 scenes to find across 2 exploration segments, with each scene having 1 or 2 extra stages, triggered by continuous interaction with their icons. 1 Bad Ending featuring 3 smaller sex scenes. If you're looking for the actual deed, try and trigger it! 29k words of narration and dialogue. 350+ new renders (including variations). 40+ new animation cycles (including variations). There are a lot of typos in the current release. Please excuse them, they'll be fixed.

Ggzao 2026-02-11 ★ ★ ★ ★ ★

horrendous Game, weak mc characters are brain dead and the story is meaning less, dont understand how a game with good animation can be that bad, the gameplay also sucks, it would be better if it ones a linear story

Gari Fuze 2026-01-16 ★ ★ ★ ★ ★

Weird UI/Interface, this is my biggest issue with this game, it is a linear VN with an extra twist, you have to click some small circles to move somewhere, and then to click view a scene. The location is further unintuitively done with dead ends, and doors are small gray bars. The story it did not make any sense to me, the setting is just not good to hook player into it. H scenes are barely passable, nothing worth the time. I am not sure why this game exists. It should not.

MilkyWay5 2025-09-09 ★ ★ ★ ★ ★

Intro: review version: 0.4 This is a fairly standard NTR VN with fantasy elements where you play from the male protagonists' POV, the character being stolen is the gf. This game being a spin-off of this dev's other game, King of Summer, (which I'll refer to as KoS) I highly recommend checking that one out first to get a more thorough presentation of the characters. Also obviously stay away if you don't like NTR as it is unavoidable. Graphics/Art: 5/5 3D models for the characters and generic VN backgrounds. The models are pretty high quality, check it out for yourself in the OP. They improved a lot between early KoS and now. The character design is generic, there isn't really an artistic vision behind it, it's mainly just conventionally attractive female characters, which is good enough for my taste. What pushes it to 5 stars is that most of the sex scenes are animated and the animations are fluid and well done, and the cum textures are solid. Music/Sounds: 4/5 Standard background music and sound effects, pretty much the same as in KoS. Nothing fancy but it gets the job done. Gameplay/UI: 2/5 Mostly the usual VN experience except you have a little map you can move around in, although it doesn't really add any new or creative gameplay elements, this could've been a standard VN. Writing/Story: 5/5 Same writing quality as in KoS however this time we actually get a nice horror-themed main story that I was skeptical about but it works surprisingly well. (Technically I think KoS has a main story about Kendo's business dealings of something but I never found that to be engaging, not nearly as much as this one anyway). Have to get into light spoilers to discuss it a bit more Spoiler the recurring memory loss trope this is specific to this game I actually found to be really interesting, like yeah it's one of those "all-purpose" tropes that you can use to justify basically anything, but I don't care that much tbh as we know from the start that Satoshi will get cucked no matter what, and when you know that outcome of the story then destroying the suspense itsn't really a major concern. And without getting into specific spoilers it does enable a ton of very fun interactions that wouldn't have been possible otherwise. The thing about NTR narration is that it usually feels more intense what it's told from the MC's POV but obviously when the MC sees too much it becomes unrealistic if he doesn't react, and if he does react the NTR end essentially, one way or another. Most NTR games out there get around this problem by having some form of double perspective setup (either bf/gf or hidden/full) and here the game handles it in a novel and creative way which I found to be refreshing. (I'm sure it's been done before in other games it's just the first time I personally experienced it). Content/Dev speed: 4/5 Took me about 5h but I skipped quite a bit so probably 6-7h if you play normally which is solid considered it came out fairly recently. Unfortunately it's not even mentioned in all the update posts on the patreon, clearly for the dev this is low priority compared to KoS, so we might be waiting for a while before we get another update. Conclusion: You'll love it for sure if you played KoS, for anyone else I guess it depends on your taste, don't expect a realistic depiction of a NTR relationship, this game is more about visuals, animations and a ton of little NTR interactions throughout the story. Any NTR fans should definitely give it a try imo.

saekoa 2025-08-10 ★ ★ ★ ★ ★

If I could give this a 4.5, I would, but since I cannot, I am giving it a 5. I gave King of Summer a 4, and since this is by the same dev, it carries over the positives while improving on them. The animations are great. The characters look familiar since the dev clearly has his favorite cast, but each one has been tweaked and looks noticeably better, especially Hanako. I also love Mary’s new hairstyle. The gameplay is well thought out, with exploring the building and discovering new scenes feeling natural and engaging. What really makes this game stand out is the hidden NTR. It feels like a love letter to the style, with plenty of behind-the-curtain moments such as fluid silhouettes or glimpses through closets where you can piece together what is happening before seeing it play out. Pacing is much improved over King of Summer. Scenes are still a little wordy at times, but they no longer drag endlessly, and the plot progresses more naturally. I am mainly rating this for the Mary and Satoshi storyline, as it is the one I care about most. The other two are fine side stories, but I rushed through them. Granted, I do enjoy Natsuki and rushed through that one less. I see someone saying the plot boils down to “small pp vs big pp.” While that element is there, it is a staple of NTR. What do you expect, the one stealing the FMC to have a pencil penis? Of course he is packing, but there is more to it. The story follows a demon who corrupts couples, tying into a previous story and gradually revealing who Ayumu really is. There is a constant ominous feeling, with Satoshi losing his memory, appetite, and focus while being manipulated by the demon. It is not a professional VN-level plot, but it works and draws me in. For me, this is a 5 for the tension, gradual corruption, and the way Mary and Satoshi’s arc is handled. It takes what was good in King of Summer and improves on it. If you enjoyed that game, you should absolutely play this. The dev is a cornerstone of Koikatsu NTR games, consistent with updates and communication, and continues to improve with every release. Well done.

Willbreaker99 2025-07-02 ★ ★ ★ ★ ★

v0.4 There's no cohesive story to this jank. You start with events being referred to in the past tense that already happened between the MC and other characters. And forget corruption. Everyone is already going behind everyone's back. The MC isn't much better who has history with some if not all the other girls as well. There's no real player agency and no chance to even identify with the MC. The story (calling it a story is an honest insult to every other story) sums up to big pp > little pp. Nothing else except mind numbing banter and attempts to humiliate an MC you won't care about. Too many NTR devs have zero creativity and the writing skills of a teenage boy whose balls only just fell. What a waste of a good premise. Clearly some people will like it. But of all games I've ever played on this site (Several years now,) I can without a doubt say that this is the worst one I've ever exposed myself to. I would have been happier if this CTD on load. Hell, even a BSOD would have been better. Off to try and cleanse my mind of this with...well, anything else. Might have to start recovery slow with some bad phone NTR games and work up from there to avoid decompression sickness. Pros: If running down the dog of someone you hate won't cut it, you can send them this. Cons: This game exists. -100/5

jimmymcgill69420 2025-03-16 ★ ★ ★ ★ ★

For a spinoff it is solid. The walking mechanic is weird but it's not that annoying and the scenes aren't bad. Big fan of hidden/oblivious ntr so this is good stuff so far. Interested to see where it goes

Pagoramix 2025-03-12 ★ ★ ★ ★ ★

It's a spin off game and it shows. The main game mechanic is about exploring a map to get the scenes. There's not much to it beyond goin from point A to point B, no optionnal content that you might miss. Storywise it's not that bad i guess,the game is really trying to set up an horror vibe, which doesn't work for me but whatever. The real issue is that the scenes are quite bad. So, there's 3 female character, so you'll have to see pretty much the same scene 3 time.You can't really skip on them, and since they are quite boring... well you know where this goes. So yeah, i guess if you're fond of the original, this could be your jam, but it's simply not that good. And if you don't know the original, or if you didn't like it, it's simply not worth it.

imbue 2024-12-21 ★ ★ ★ ★ ★

Nice king of summer spinoff, its a breath of fresh air seeing the main cast in a new environment and still mesh with each other nicely. In terms of the NTR so far I'm enjoying the buildup and how much content there is even though its still in early stages.

Throw98 2024-12-17 ★ ★ ★ ★ ★

This game contains, IMHO, a clever way to travel the map and discovering the Events. I must say that makes the NTR more enjoyable. Overall this is a great game, with a "different" story based on well-developed characters and a horror twist.