Do you want your own harem? How about in another world for some reason?
Upon dying you are greeted by Voluptas, Goddess of Lust, and give the power of size control.
You use this power in the only possible way, to change the breast size of any girl you're intimate with.​

You choose a devoted maiden to serve at your side - but her cleaning duties are the least of your concerns. Obedient, eager, and desperate to please, your chosen maid hangs on your every wish. Guide her daily routine, indulge her cravings, and watch as she slowly softens under your command. With careful attention (and a little royal encouragement), your maid begins to change... growing fuller, rounder, and irresistibly curvy - all in pursuit of your approval. Will you show restraint... or indulge in watching your favorite maid flourish?​

A Survival Horror Game of Temptation and Transformation
The world has fallen to the RAG-Virus—a pandemic causing rapid weight gain and mental decline. You're Sarah, alone in your apartment as Visitors knock each night. Some are survivors. Others are something far worse. Every choice determines if you survive or become their next mindless vessel.​

Features:
Visitor Testing System: Check hands and teeth—some aren't human
Weight Gain Progression: Watch Sarah physically transform as the virus takes hold
8 Unique Visitors: Each with their own dark desires and secrets
Multiple Endings: Survive, escape, or embrace transformation
Psychological Horror: The seductive pull of giving in
Content Includes:
Female MC transformation
BBW/SSBBW weight gain
Breast and ass expansion
Horror and psychological tension
Adult themes (18+)

From the Developer
"Don't Open the Door explores the intersection of fear and desire. What happens when the thing that terrifies you also tempts you? When survival means resisting pleasures that promise to erase all your pain? This game is about that moment of choice—when the knocking starts, and you have to decide who to let in."

Game feels like it was made by someone who got horny halfway through a DnD session and just never went back to the main quest, in a good way and in a really stupid way at the same time. You start out thinking “ok, normal fantasy smut, I’ll click through a bit, bust a nut, move on”. Then suddenly the whole focus is bellies, stuffing, curves getting out of control, clothes losing against physics. It starts slow, with tiny changes, little comments about tight skirts and strained belts, and before you notice you are watching a girl who was “cute chubby” five minutes ago struggling to get through a doorway because you spammed the wrong magic spell on her in the tavern. I was playing in Chrome on my laptop, had a YouTube tab open with some random playlist, and at some point I realized I wasn’t listening to the music at all, just staring at her stomach creeping over the edge of the table like it was its own character. The game really likes to focus on the belly, not generic “she gets bigger” stuff, but exact spots: the soft roll folding when she bends, the way her top rides up, how she complains that her thighs are chafing. It’s fetish brainrot made interactive, which is honestly what I came for anyway.

What caught me off guard is how the choices push you to be greedy. You get this “just one more snack” energy. You can feed her “normally” with food or hit her with magic that blows her out like a balloon, and somehow the combo feels dirtier than either alone. I hit a scene where I overdid the spells, her belly went huge really fast, and she’s flushed, panting, trying to sit up but basically anchored by her own gut. The dialogue there hits pretty specific kinks: embarrassment, neediness, a bit of denial. She keeps saying she can stop eating whenever, while her shirt buttons are literally flying across the room. The writing flips between sexy and kinda goofy, like one scene has her moaning about how heavy her stomach feels, then next line she complains that her favorite dress “died in battle” after you took her to a bakery. Sometimes the text repeats little phrases and you can tell the dev was just horny and tired, but somehow that made it hotter for me, because it feels personal and not like some polished porn machine. Still, I really wanted more reactions when she reaches truly massive size, not just “oh I’m so big now” copied with slightly different adjectives. Also there is one sound effect that plays on loop when you spam feeding, a tiny squishy pop, and now it lives in my brain rent free and I kind of hate it and kind of want it louder. The whole thing is messy, inconsistent, wildly indulgent, exactly the kind of browser smut you swear you’ll just test for five minutes then suddenly you’re optimizing how to turn a mage’s apprentice into a soft immobile shrine to your terrible decisions.

Gwen’s story feels like someone smashed together a horny growth fantasy, a clumsy isekai, and a half-finished audio drama, then fed it through one of those AI image models that sometimes makes six fingers on one hand and tits that look like they’re about to file a worker’s union. She starts out pretty normal in the intro, just this curious girl with a bit of attitude, and then the game goes “hey, wanna be futa?” and casually hands you a massive cock like it’s no big deal. I liked that it doesn’t treat that choice like a big moral thing, just a horny setting. You pick, and then the whole tone of the scenes kind of tilts around it, especially in the later encounters where her body starts getting… yeah, really not safe to show on Twitch. The first time the weight gain actually kicks in, it doesn’t come with a big fireworks moment, it’s just some teasing comments, tighter clothes, a CG where her belly and boobs look a bit fuller, and suddenly you realize the game is already steering you down the “bigger in every possible way” slope. It’s sneaky like that. Sexy sneaky. And also a bit stupid, in a charming way.

The visual novel structure is pretty straightforward, but the way the scenes are written has this funny clash going on. You get sweet, curious Gwen asking stuff like she’s trying to learn about the world, then two clicks later she’s moaning about how heavy her tits are, how good it feels when they swell and press against her own arms, or when her growing muscles make her clothes ride up and half the screen is just flexing thighs and bulging pecs. Some of the AI art is actually hot as hell, like those shots where her muscles and curves grow together, thick arms holding up breasts that look too big for her frame, nipples erect and pushing shadows across her chest. Other times her face looks like she remembers she’s an AI render and wants to cry about it. It’s inconsistent, yeah, but that almost weirdly fits the whole “growth chaos” thing. One scene narrows in on her biceps a lot, like the artist had a fetish tunnel vision: veins, sweat, that slight shake when she flexes and realizes she likes feeling stronger and heavier and more stuffed everywhere. Then next scene it’s all about her ass and hips gaining weight, her panties digging in, and the writing just goes straight into, “I can feel my underwear cutting into my skin while my cock throbs against my belly.” That line got stuck in my head for a while, probably because I kept rereading it to hear how I’d deliver it out loud in a recording.

From a voice acting nerd brain, this game is a goldmine of “oh god, I want to read this out loud” lines and also “who wrote this at 2 glasses of wine in?” ones. Gwen switches between playful and desperate so fast. One moment she’s teasing someone about watching her grow, asking if they’re scared of a girl with bigger arms than theirs, next moment she’s in this messy, breathy state, describing how her tits are swelling against somebody’s hands, how heavy they feel, how her cock pulses each time her chest expands. There’s a scene where she’s talking about how her boobs are starting to block her view of her feet while she walks, and the text spends an absurd amount of time on how her bra straps dig into her shoulders, the fabric creaking, that pressure right before it gives in. I kept thinking, “this is exactly the kind of thing guys on Reddit argue about for six pages.” The game lets you pick options that either encourage her to lean into the muscle side of her growth, with her arms and abs thickening, or the weight gain side, where she goes soft but huge, with belly and boobs that jiggle so much you can almost hear the sound in your head. Sometimes it feels like the pacing forgets what it was doing, you go from a hot futa scene where she’s grinding her thick thighs together and complaining how her cock keeps getting in the way, to a filler conversation with a cameo character from another universe that feels like the writer just wanted to name drop. Still, there’s this one late event where everything clicks: Gwen’s taller, wider, chest stretched tight, veins on her biceps, her shaft leaking over a softened, heavier belly, and she’s half laughing, half moaning about how she finally feels like the “biggest version of herself” while begging you to keep making her grow. That scene alone made the whole messy, horny, AI-generated ride feel worth it in its own broken, overstuffed way.

You start as this small-town girl who suddenly lands in a big city for university, and the game just quietly goes, “yeah, you’re thirsty for knowledge, but also… you’re gonna feed some really bad habits.” It plays like a cute anime dating sim at first, all soft colors and shy smiles, but it’s absolutely not shy about what it actually wants to do with bodies. Every girl you meet has her own hang-ups, and almost all of them can be pushed toward getting softer, heavier, more stuffed, more… overflowing. It’s like someone took a wholesome campus slice-of-life and then asked, “ok but what if everyone slowly turned into walking curves because they can’t say no to dessert or late-night snacks or one more drink with whipped cream?” and nobody said no.

What I liked is how the weight gain and all the expanding parts aren’t just “you clicked, her boobs get bigger, congrats.” It kind of sneaks up. You’re on some normal date at a café, she orders something modest, you tease a bit, suggest the giant milkshake, then a second one, then some cake “since we’re already here,” and the dialogue starts getting this hungry tone. She blushes, complains she’s full, but her eyes light up when you suggest bringing takeout too. You come back for another event and suddenly the sprite has thicker thighs, her ass is straining her skirt, she’s tugging at her top because her tits don’t sit right anymore, and the text is like, “I don’t know why my clothes feel tight, it’s probably the laundry.” Sure. Then you hit the scenes where you deliberately stuff her until she groans and presses her hands into a round belly, and the game just leans into it. Not joking around. Belly bulges, shirts riding up, bras digging in, the whole thing. Sometimes it goes pretty far, girl pinned in her chair by her own ass, panting, still licking cream from her lips, asking if there’s more. The stuffing focus is strong, and it actually feels erotic instead of goofy, which is dangerous if that’s your thing. Breasts swelling out of a top mid-conversation, buttons popping, jiggling every time the text box advances, that kind of “oh shit this is escalating fast” feeling.

What bugged me a bit: the pacing is weird in spots. You get these long streaks where you’re clicking through campus small talk, class stuff, background drama, and you think “ok maybe this is just a normal VN with some chubby fanservice,” and then suddenly a single choice turns the scene into full-on gluttony porn with her moaning around a spoon and talking with her mouth full. No real ramp. I kinda love that and hate it. Also one character’s pants look like they’re painted on when she starts getting really thick around the hips, but then the next CG, the proportions hit just right and you forget you were annoyed. The writing has that slightly awkward, non-native vibe sometimes, like someone typed “I feel my body more heavy now” and forgot to fix it, which low-key makes it hotter because it feels less polished and more like a fetish passion project. There are a few routes where the expansion focuses more on hips and ass, and you watch her go from cute in jeans to basically one big ass with a girl attached, knocking stuff over in her dorm with her butt and pretending it’s an accident. Meanwhile you are absolutely pushing her there with “oh come on, have another plate, you worked so hard today” while your character’s inner monologue is like, “I want to see that zipper surrender.” It does that thing where the MC acts supportive and sweet but the choices are all like: encourage, really encourage, or absolutely ruin her self-control. And the game smiles at you and hands you another scene where she waddles a bit heavier, breathing harder, but saying she’s never felt so “free.”

Nerdy kid in the lab, trying to cook up some hardcore muscle roids for himself, and instead he brews this cursed miracle juice that does absolutely nothing for biceps but turns asses and tits into walking gravity problems. That is the whole brain of this game: one stupid mistake, and suddenly every girl around him is at risk of waking up with a shelf for an ass and boobs that need their own chair. The story plays it kind of straight at first, like some awkward teen science project, full of test tubes, spreadsheets, and him mumbling about formulas while obviously just thinking about tits anyway. It feels almost innocent in the first minutes. Then he actually uses the stuff, and the tone just slides into pure horny chaos in slow motion.

What I liked is how casual the first growth is. No big magic spell, no “behold my power” anime pose. More like, "uh, try this sample, it might help your gains", and a girl drinks it without reading any label, like regular preworkout. She walks off, and nothing happens. You keep clicking through dialog, nothing, nothing, more nerd talk, then you get this CG where she turns sideways and you realize her leggings are fighting for their life. Ass suddenly big enough to bounce a coin across the room, but her brain didn't catch up yet. There is this really fun delay where she is still talking normal while the camera keeps sliding a bit lower, and then you see the fabric stretching and you get that tiny panic in your chest, like, "oh shit, how far is this gonna go?" Boobs follow in some later scenes, and they do not grow cute or modest. They blow up with that heavy look, like they hurt her back, which makes it even hotter because the game leans into the weight. You see straps digging into skin, tops threatening to snap. Sometimes the growth is in stages, sometimes it just jumps a couple sizes between CGs. Feels inconsistent, but in a way where you keep clicking because maybe this next one will be the really huge jump. And sometimes it is. Sometimes the juice hits like a truck.

The nerd himself is funny and pathetic at the same time. He keeps pretending he wants to “fix the formula” but also never stops “testing” it on girls who really should ask more questions. Dialogue is a bit clumsy in spots, which weirdly fits, because he talks like someone who spends more time on Discord than outside. There is this one scene where a girl sits down and her ass literally does not fit inside the frame right, like it spills out of the camera angle. You only see part of her, and it is almost annoying, because you want the full picture, but also that cropped feeling makes it seem even bigger in your head. I got stuck mentally on that one for longer than I should. Scrolled back to it from the history a few times, like "yeah, this is the good one." The game likes to tease with clothes that are one second away from surrender. Buttons strained, yoga pants shiny and stretched thin, tops that obviously were not bought for these new sizes. It is less about clothes exploding off and more about that slow, “I can’t button this anymore” humiliation. It could use more variety in body types, honestly, everything is on the big scale after a while, you start missing the contrast. But if you are in the mood to watch normal girls turn into walking boob and ass monuments thanks to one idiot with a chemistry set and zero ethics, this thing goes all in on that fantasy and never pretends to be anything else.

Getting an inheritance? Happens all the time. But what if the mansion you receive isn’t just some old building? Now that’s where the real fun begins. It’s a place filled with peril, pleasure, and endless experiences. Today’s mail brought you an offer you can’t refuse - will you say yes? There’s no way you’d pass up on this. Just don’t get careless now. Your decisions could save or doom both our world and the others. Or maybe you just want to fuck every stunning beauty you meet before chaos takes over. Either way, this mansion becomes your playground and your battlefield. Jump straight into a world where lust meets lethal stakes. Discover secret chambers teeming with mystery and raw temptation. Encounter figures who challenge your boundaries and ignite your darkest cravings. Are you going to tread carefully, or throw yourself into the chaos? Every move you make ripples through the fabric of reality itself. At the very least, you’ll get to experience some of the wildest, sexiest encounters imaginable before the curtains close. Ready to take that envelope and step into a world where every choice burns with desire and risk?