UNDAWN: Shackles Of Eternity

by Kind Nightmares

Uncensored Windows Linux Mac
VersionCh.2 Public
EngineRen'Py
Released2026-05-03
Updated2026-05-03
LanguageEnglish, Russian

UNDAWN: Shackles Of Eternity is a dark fantasy adult visual novel. This is a story set in a world where light and shadow have long since merged, and truth depends only on who holds the greater power. There are no righteous sides here, no heroes in shining armor. Even the purest intentions can turn into disaster, and the most obvious choice may open the door to something far worse. At the center of it - Rhiannon . Her past is veiled in shadow, and her present is a journey through a world where faith is twisted and hope comes at too high a price. She is beautiful yet cold, intelligent yet distant — and it is through her eyes that the story unfolds. Rhiannon is no savior, but neither is she a monster; she is someone who has lived in the dark for too long to still believe in simple truths. Undawn explores themes of power, betrayal, immortality, and the cost of choice. There are no easy answers, and every step may change everything around you.​

Chapter 2 Public 1200+ new renders Around 20,000 words of text 6 new achievements 6 new characters 1 sex scene (Loraine) Music and sound updates Fixed a bug where a character’s glossary entry would update incorrectly if you completed their route differently. Chapter 1 Fix I think I’ve fixed all the bugs that somehow popped up after the public release, including the second Loraine choice bug. Chapter 1 1340+ new renders Around 25,000 words of text 9 new achievements Over 10 new characters, both major and secondary 2 fully optional questlines: Loraine and Zaghrona 3 new sex scenes (1 with Loraine and 2 with Zaghrona) Music and sound updates Small fixes after previous releases Prologue 2025-11-01 This version includes a few small adjustments based on the feedback from previous releases. The main change is a new dialogue font — it’s now slightly thicker and easier to read. For those who prefer something simpler, I’ve also added a font switch option in the settings menu, so you can choose the one that feels more comfortable. Aside from that, there are several minor fixes and improvements to make everything look and feel a bit smoother. Prologue – 660+ renders – ~10,000 words – 1 full sex scene – A fully custom achievement system (built entirely from scratch for Undawn ) – A unique in-game glossary system (hand-crafted, not based on any tutorials or templates)
PalatinePhoenix 2026-03-30
I don't often rate a game this early, but given the Devs fantastic history with their last game Instinct unleashed i feel quite confident in their ability to write characters and arcs. Visuals: Already in IU you saw a truly massive improvement from the first chapters to the later visually speaking and even so i was pleasantly shocked to see how big of an improvement Undawn still manages to be. game looks fantastic Characters: While there are a few great futa protag games, i gotta say noone writes confident female leads like Kind Nightmares and once again the supporting cast and LIs all seem great. Plot: Waaay to early to really comment, but the worldbuilding and plot points iv'e seen so far just leave me hungry for more, as it feels very fleshed out and realistic for the world we presented with.
Coaxmetal 2026-02-09
What a great beginning to a new Kind Nightmares creation. Loved IU but this game really showed so much improvement in the writing and storytelling. Not to forget the renders – I just hope the new fidelity doesn't come at the cost of the release schedule. Remains to be seen. The MC is very interesting and different – it'll be great to see what the actual story is going to be. This was a great intro, but only sowed some scattered seeds in regarding to Rhiannon's past and the antagonists(?). GJ Kind Nightmares. Promising start, will def follow and purchase on some platform when available.
Dark_FOX 2026-02-06
The developer makes great games, that the last game was good, that this game is good. The game has been catchy with its narrative since the prologue. Если разраб читает тут отзывы, отдельный респект за музыку из Незнайки на луне. Прям детсво вспомнилось.))
Sadsapling 2026-02-06
Really interesting. The premise is that you're basically a vampire that practices black magics and keep to yourself in a forest in the woods. It's less of a cohesive story and more about your encounters with others across large periods of time. You're less of a black and white character and more of a curious observer. I particularly enjoy that the best options aren't always the "good" ones, and more of the pragmatic ones. There are multiple time skips with the story and it really makes it feel like the MC has a different sense of time from human life, at least imo. The visuals are stunning. The main character looks particularly beautiful as a standout among the cast. If you're into darker, edgy vampire mistress look, she'll definitely be your type. There's so much detail in all the different races and there's tons of worldbuilding to be found in their descriptions in the glossary. Sadly, the sex scenes are not animated on any level whatsoever. It would've definitely elevated them. My biggest gripes with the game are: - The glossary needs to be viewable from in-game or while you're playing the story. Having to save and go back to menu to view different terms is a hassle. - The points you get from selecting choices need to be elaborated upon while you're playing. It's confusing the first couple of times they show up. That or add a whole section in the glossary for it. - The transitions for time could use some work. Sometimes, many years pass and there's no clear passage of time unless explicitly mentioned by the characters themselves. Other times, yes a few days or weeks pass and it's clearly stated in plain text. All in all, this is wonderful game and I'm loving the aesthetic of the whole story. I will say, it's probably clear that you're supposed to be playing as dominatrix, as the submissive options definitely don't seem as the "proper" route as the dominant ones. Not that I have a problem with it, but just as a fair warning to anyone else looking to try the game.
Varador 2026-02-06
In one word: amazing . The story, the writing and the visuals are top notch. There is not much carnal scenes (as of Ch.1) (I may have missed some scenes ) however the mental arousal I got form this was extraordinary. The nature of the protag is presented so well I cant wait it too see more of her. I genuinely loved this.
CrazyOwl53 2026-02-06
Absolutely incredible. Great storytelling with beautiful visuals, music and atmosphere. I love the character design of the MC and I adore the world building. The only sad part is that I now will be tortured waiting for more. But it is worth waiting for.
WardroberVT 2026-02-06
[Ch.1] Good visual with great plot Didn't know about the dev and his previous work before but it was not a big problem cause i'd already knew about futa tag. The problem is execution. Visual and graphics ★★★★☆ Very pleasant. Good work with camera, pretty characters, beautiful background but how futa/trans implemented here is very clumsy and hilarious. It destroys all grim dark fantasy world to please its fans. All the good looks are gone like it was made by other dev. Animation ★☆☆☆☆ Unexpectedly sad. With so good visual style there are almost complete lack of animations. You won't see any animated blinking or lips in dialogues or ordinary scenes. Sex scenes are very few and not so easy to gain but anyway there are just one or two simple animations. Sound ★★★☆☆ Music is ok, some environment sounds, not always great choices for atmosphere but ok. Almost complete lack of sound in dialogues and sex scenes. Text, dialogues ★★★★★ The strongest aspect of this avn. Constantly keeps you on edge, constantly intriguing. I can find fault to the time/location jumps and to some misprints but it's negligible. Gameplay, replayability ★★☆☆☆ It says from the start that your choices impact on story and so on. Yeah you can kill or keep alive some characters but for the 1st chapter i can't see any difference. You are immortal powerful mage, live for a thousand years, for you they are just some insects. Maybe later they will save your careless life but for now it's meaningless. To unlock sex scenes you should earn only maximum points with characters. Without tips on you should replay many times to understand it. Not great design. Conclusion ★★★☆☆ If you don't take this avn seriously as it tries to seem you will have good time. Many sides still need to be pulled up to good level like animations and sound. Add sex scenes for neutral playthrough and change max points requirement for some characters to whom you have been kind and it won't be so repulsive.
jimmyjambles 2026-02-05
I was not prepared for how good this would be. The dev’s previous game used pretty low-res artwork, which made it hard to get into (though it improved over time). And the experience was very linear, with your only choices being whether to have sex or not. Undawn is a whole different ballgame. First of all, it has a look that puts Kind Nightmares in the top-tier. The lighting, the framing, all of it. Then the writing is stronger, with deeper characters and themes. This medieval world has its own fantasy lore, and its own various conflicts. You make choices that change how things unfold. Chapter 1 also had a lot more content than I was expecting, given how quickly it followed the release of the prologue. Yet because the dev also used some excellent image compression, the download is very compact. Even the music is interesting and varied for once. My only concern is that this much content with this level of polish takes a really long time to complete, so while their last game got frequent updates, I’m not confident that they will be able to maintain their previous pace. I guess we’ll have to see. In the meantime, what I’ve seen so far is 10/10, no notes.
UwUQuirky 2026-02-05
Just finished the first chapter, an absolute delight! After the great "Instinct unleashed" Kind Nightmares delivers again with a new game! The graphical and writing upgrade is top notch! Tho the game NEEDS a walktrough with all the choices!
N0madS0uL 2026-02-05
VERSION: Ch.1 SUMMARY: Impressive on all levels. RATINGS: (out of 5): ⭐⭐⭐⭐ NOTE: The following categories and scoring method are my own criteria and may require more context. Additionally , scoring is based on the state, and what is in the current version and not what may or may not be introduced at a later point. Character (Model) Visuals......... : ⭐⭐⭐⭐⭐ General (World) Visuals........... : ⭐⭐⭐⭐⭐ Animation Quality................. : ⭐⭐ Character Personality(Persona).... : ⭐⭐⭐⭐ Story & Dialogue .................. : ⭐⭐⭐⭐ Writing & Grammar................. : ⭐⭐⭐⭐ ⭐ UX/UI, Game Type & Mechanics.......: ⭐⭐⭐⭐ ⭐ Playtime & Pacing ..................: ⭐⭐⭐⭐⭐ Music & Sounds .....................: ⭐⭐⭐⭐ Adult Content & Fetishes.......... : ⭐⭐⭐⭐ Average: X of 50 possible points giving a X% rating i.e. X stars. PROS: - See my opinions section for details. MC and models in general are very good looking. Renders and world details are impressive and nicely detailed. Music is very good and fits the scenes nicely. Medieval setting is done very well with its dark and gloomy setting, while eerie also very beautiful. Dialogue is very good, structured and reads good. Not overly bloated, but detailed enough to get the gist of things. UI/UX is decent, gives you all you need without making it convoluted or awkward. CONS: - See my opinions section for details. Not much here yet and lewds are not a really major if any part of this AVN. Would like to see more kinks, like the developers previous works. Animations or lack thereof is the only really significant concern, there are really none and that which is there is more like 3 renders semi sped up. This is very disappointing for an AVN of this caliber. Some inconsistencies in things like the MCs face changes from one scene to another, not everywhere but happens, this is more a mention than major issue. Sometimes there feels to be a contradiction in the MC, in being happy and not...this is more observation than con...maybe a subject for debate? See comments. OPINIONS, SUGGESTIONS & FINAL REMARKS : NOTE: The following remarks are my personal opinions and thoughts, which may provide more context and could be useful to the developer. (Read them or don't) A far cry in terms of visuals, artwork, lore, effects and sounds than the developers previous work, which itself was good but could hold no candle to this work. Here a bar has been set and it is significant. Considering the MC is a unique creature, this being an AVN and all, I would personally like to see more kinks in terms of impregnation, after-all most if not all creatures need to self perpetuate to survive as a species? While this does exist, stating it happened and seeing/living the result later are two very different things. The MC speaks about wanting and preferring to be alone, yet humans, being of intellect, thought and feelings need companionship, need connection, we are social by design, yet our MC claims not to be? Says she feels nothing, yet she feels content or discontent, likes flowers, like solitude due to the nature of people that wont accept her. The MC states she feels nothing, yet the player feels and decides...? These are still feelings, but we are to believe she has none? I think the MC is much more complex than even she knows and is not simply heartless despite what she thinks. A decent walkthrough would be nice, it would be great to know how your choices pan out, before having to redo or replay the entire AVN...Additionally, I would love to know how to unlock scenes from the gallery, without needing an unlocker... The main issue being that animations are few and far between and those that are there are of very low quality at least in terms of fluidity, length and any decent angles, this is particularly disappointing as this AVN deserves all bells and whistles. The other point I want to raise is frequency of updates and amount of content, this AVN is still new, but based on what is here, amount of content and its quality, it stands to reason there will be a good amount time between updates...this is a concern... TLDR: Very impressive, very refined, has details about it that tell you here has been some significant effort and care that went into its development. The one major failure is the lack of animations and/or the quality of the ones here. Otherwise, I am impressed and would highly recommend this AVN. There is complexity and intrigue coupled to a dark beauty that I find captivating. Its written well and its story is fairly unique and interesting. I look forward to seeing it develop.
Newbe163 2025-12-29
Very good start. And it is a novel, you do not need to do mini games or take a map to solve topics or start to fight to get to the next step. Brilliant the two main characters, also the side characters are done very good. Not the standard college or after college story, but also not - at least up to now - the fight against gnoms a.s.o. storyline. Dark, Rhiannon as main person the beautiful elven vampire. Let's see the next chapters
Loakkkta 2025-12-12
Amazing prologue, it was very captivating. Writing is decent enough, everything looks beautiful, very excited for future updates. Not many games in this genre and most of them get abandoned eventually but I very much hope this one makes it.
Morgana Le Fay 2025-11-25
I might just have found a new favourite dark fantasy themed AVN on here. Although it's only the Prologue at this stage, i'm impressed from what i played. The story, visuals and atmosphere hooked me in and i like the varied options you have as choices during the dialogue. I went for the smarter/balanced play style instead of my usual bite out throats while laughing like a demented madwoman type of style. My main FMC (Morgana) is deliciously aloof and comes across as an ancient powerful being and hey, her hot vampy looks are perfect for her character. I also must mention i just love Irsha! your sassy demonic follower who likes to push boundaries but she's gorgeous, so she can be forgiven.. A great start by the dev, i'm definitely keeping an eye open for more of his updates as this has a lot of potential. Give it a try or i might have to feast on your liver with some fava beans and a nice chianti.
Twoop 2025-11-02
Almost closer to 4 when looking at the full thing, but the start is great and I hope this gets continued so it can fulfill that 5 star promise. Interesting characters, many good renders, hot setup. What I'd love to see is some of those more storytelling scenes to also have a higher quality (just better lighting setup really), and a bit less of thought narration since it can be a bit much. Adding animations would wrap this up nicely.
Telral 2025-10-28
Awesome start! Intriguing world, unique story, and a compelling protagonist. Fun homages, great cinematography. Content is limited for now, but incredibly promising. Side characters are solid too. Choices already have an impact—hoping the complex system sticks around
Melonie 2025-10-28
- All the characters are interesting , especially the protagonist, which I'm already down for because she has a very dark and mysterious personality - Precisely the archetype I find most appealing. She's so powerful and attractive, which also gives us a sense of control over everyone else; although Its better if this control isn't absolute and that she faces real dangers and challenges sometimes. I just wish there was the option for her to be female, instead of futa. - The VN tells us right from the start it will focus on choices, and it seems to deliver on that promise, because there are a good number of them and they allow us to shape the story, along with the MC's morality and personality. - The graphics are decent, standard for Ren'py. I think some scenarios could be darker, however, to convey better the feeling of darkness and dangerous atmosphere - like the forest at the beginning. So far, huge potential.
rasalghul67 2025-10-26
As a prologue, UNDAWN: Shackles of Eternity sets a strong foundation for what looks to be an exciting story to come. It provides a good amount of content that not only introduces the world but also sets up key plot points, making it an engaging beginning to what could be a thrilling adventure. Graphics & Visuals: The renders in UNDAWN are definitely a highlight. They’re well-crafted, and the attention to detail is clear in most of the scenes. However, there are a few moments where the quality feels slightly lower than the overall standard, though this doesn’t detract too much from the experience. One minor thing I noticed that could be improved is the protagonist's anatomy — specifically, the skin tone of this character’s penis could match the rest of his body more closely for a more natural look. Despite these small issues, the visuals as a whole are impressive and visually captivating. Sound & Music: The music and sound effects are well-suited to the scenes in the game. It’s refreshing to see a game where the audio matches the tone and atmosphere, adding an extra layer of immersion. The soundtrack complements the mood of the game without being overpowering, and the sound effects enhance the realism, making the environment feel alive and reactive. Scene Transitions: One area for potential improvement is the transitions between scenes. While the game does a solid job of moving through its story, some transitions could be smoother. There were a few moments where the change in location or scene felt a bit abrupt, which momentarily took me out of the experience. With a little tweaking in this area, it could really elevate the overall flow. Overall Impression: For a second game following Instinct Unleashed , UNDAWN: Shackles of Eternity is off to a strong start. It’s clear that a lot of effort has been put into creating a compelling world and engaging characters. While there are a few minor areas that could benefit from improvement, such as rendering consistency and scene transitions, this prologue is still an enjoyable and solid introduction. I’m excited to see where the story goes in future updates and would recommend it to anyone who enjoyed Instinct Unleashed or is a fan of the genre.
Kuhuja 2025-10-26
Versio: Prologue Story does feel at the beginning somewhat confusing, as the setting is really unique. But it flows with great pace. Never did it feel like there is information dumbing, even if there is new terms for many basic fantasy concept (not a fan). Point system feels fun and even if there might be serious consequences, MC is so dark that it fits perfectly. Only problem I have is that story and MC like this doesn´t give much hope for lots of sex scenes. Pity fucking might get boring pretty fast, but I also don´t wanna see MC fall in love with some random flat chested mortal. Writing does have a lot of interesting characters. MC is very unique character and has really nice atmosphere with her dialogue. It is so refreshing to play this kind of MC that might have other priorities than "save the world"/"conquer the world", even if that is what happens in the end. Sadly the sex scene did feel little dead with MC like this. Visually game looks good. Characters are beautiful and MC specially looks authoritative. Camera angles are great and visuals overall support the dark story very well. Sex scenes could use better animations (even AI ones), as they look so passionless and mechanical. Well the one sex scene that we had this far. MC also gets smaller during sex, the whole character. Kind of one of the main thing why she looks so sexy while towering over other people in regular conversations.
crackheaded_d 2025-10-26
I played the prologue in Russian. It's well-written and the narrative is like a good old fantasy novel. The MC is simply incredible. Jade from the previous game was good, but my Sehaniel (canonically Rhiannon) is much more multifaceted. I especially liked that our favorite author gave us the option to act as anyone would (kill them and forget, or leave them alive but with a personality disorder—which will affect the future). Irsha is incredible, domestic as a cat, but playful like a succubus. Rosanna was a good secondary character, not an empty shell, but even with some kind of backstory. And at the end, there was a girl with blue pupils, she looks like an elf, and something tells me... she doesn't have a dick between her legs (I don't remember the name of the effeminate elves in this game). I hope she becomes the mainly character, something tells me she'll be interesting. The render quality is much, much better than in the previous game. I especially liked the render style, it looks like an "old, musty book with ancient writings." Everything looks great. The animation quality...well, they're not worse than in the previous game, i wouldn't call them the best I've seen, but still, not bad. The story is also great, even though it's just a prologue and introduction to the characters and lore. It looks like an expensive fantasy story (or movie) that you want to read (or watch). Verdict: well, 9-9.5/10, -1 (-0.5) points for the animation quality, which doesn't match the amazing quality of the renders. I hope the animations improve, but even so, the game looks incredible.
kivto 2025-10-25
Peak. The writing, the lore, the mc's strength and aura farming. I'm not a fan of instinct unleashed even though i tried to get into it. However, this vn is too good. Even for the prologue there are enough options to make the mc your own. I actually played all the options to see the different routes of the mc. The vn does not crush you with an info dump like how most lore heavy beginner novels do. It gives enough information to know what the terms mean and stuff. All in all, its a strong start. For now, i think there is only one sex scene. It was fine, but for me thats not really what i care for so yeah.

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