The Best Muscle-Girl Dating Sim
150+ NSFW muscle growth scenes. 9 dateable girls. 30+ hours of gameplay. Your choices actually shape the story. Heavily inspired by Persona.
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A serum that triggers explosive muscle growth. A scientist murdered for creating it. His daughter has perfected the formula - and nine girls are about to be transformed forever. A shadow organization will stop at nothing to get their hands on it. Your choices decide who grows, who fights, and who survives.
Inventor of the serum. Her father created the formula dreaming of a world without suffering. After his murder, she spent two years alone perfecting it. Cool, direct, and carrying more weight on her shoulders than anyone knows.
Gamer, streamer, and Gyaku Strike pro. Took her first dose of serum live on camera and it went viral. Petite, pink-haired, deeply insecure about her size, but none of that matters once she transforms.
Warm barista at Deja Brew, her family's cafe. Moved to Tokyo from Osaka to escape an abusive ex. Radiates sunshine to everyone around her, but behind the smile is someone who's been powerless for too long.
Wealthy, arrogant, and convinced she's above everyone. Calls you "peasant" without blinking.
Yakuza boss. "The Scarlet Blade." Red hair, eyepatch, and a body count. Born in a brothel, raised without love, she clawed her way to the top. Runs the StrongGirls club.
Shy farm girl who joined the drama club to stop being invisible. Always compared to her overachieving lawyer sister. Kind, gentle, easily flustered. The serum gives her confidence she never had, but she learns shortcuts can't replace real effort.
Paralyzed since a car accident at age five. The serum lets her walk for the first time in her life. Every step is a miracle she will fight to keep. Going back to the wheelchair after the serum wears off is the cruelest thing she can imagine.
School nurse by day. "The White Wolf" pro wrestler by night. From Hokkaido, already naturally muscular before the serum. Dropped out of medical school, settled for nursing, but the ring is where she comes alive.
Basketball star. Loud, impulsive, competitive about everything. The most enthusiastic serum user of them all. Orders three pizzas when stressed. Her changes are permanent now, and the consequences of her choices are catching up to her.
Watch your favorite girls transform. Multiple stages of muscle growth, each one more impressive than the last. NSFW included.
Each girl has her own story, personality, and level 1 to 10 progression. Choose who you spend your time with.
A Persona-inspired daily decision system. How you spend each day changes your relationships, stats, and which endings you unlock.
Full branching routes, multiple endings, and a story that keeps going with monthly updates. This isn't a short demo.
AI-generated backgrounds, sprites, and CGs. Every scene looks different. No recycled art, no filler.
Halloween, Christmas, Valentine's. New monthly XXX releases. 70+ items across 7 vendors. There's always something new.
This isn't another abandoned NSFW game. Strong Girls has an active, thriving community with a developer who delivers - every single week. Join 800+ supporters who already know what's up.
I've been into muscular girls for as long as I can remember. FMG is an even stranger niche on top of that - girls growing stronger, more powerful, more... everything. For most of my life I figured that was something I'd keep to myself forever, let alone build an entire game around it.
But then I started making Strong Girls, and something unexpected happened. People showed up. Hundreds of them. Turns out I wasn't the only one. Not even close.
The Discord we've built is a place where nobody judges. People share what they love about the game, about FMG, about the art, about the weird and wonderful stuff that brought them here. We've got a whole community of AI artists and FMG fans creating and sharing content together. It's honestly the best part of this whole project.
6 chapters deep, weekly devlogs, monthly releases. I'm not disappearing. I'm not burning out and ghosting. This is my thing and I'm here for the long haul. And between us - there might be more Strong Girls games in the works. Stay tuned.
Full game access. All chapters, all routes, all characters.
Get Full AccessAs a side project, we brought Kaori to life as an AI companion. She runs the @StrongGirlsVN account on X, posts her own thoughts, replies to your comments, and sends you pics. She's competitive, she doesn't hold back, and she actually remembers who you are.