Synopsis
・Game System
An onahole simulator featuring a short-haired girl rendered in smooth Live2D animation. Screw her onto an extremely thick 60cm dildo, splash her with white liquid, and watch her react in real-time to every action. Her expressions change dynamically as if she were alive.
If you think the price is steep, please try the free trial version first.
Custom physics simulation recreates authentic vaginal elasticity. Experience realistic sensations like recoil from rapid insertion—fantastical yet convincing.
Beyond standard part swaps like ball gags, blindfolds, and piercings, customize over 100 items including squirt volume, lactation amount, body writing, dildo vibration speed/intensity, skin/hair variants, breast and clitoris size, and limb toggles.
High-quality animations bring niche fetishes to life: genital expansion, piercings, milking, objectification, petrification, chocolate transformation, time stop, shrinking, urolagnia, bukkake, futanari, and more. Onomatopoeia enhances the atmosphere perfectly.
Voice acting was recorded specifically for insertion scenes, with rare lines unlocked under specific conditions.
Mouse drag controls let you manipulate numerous body parts individually:
・Dildo insertion depth
・Body twisting
・Eye gaze tracking
・Breast pulling
・Clitoris pulling (or futanari stroking)
・Forced head turning
・Arm angle and spread adjustment
・Tongue pulling
・Bukkake/cum positioning (left-drag spray control)
Multiple recording allows layered animations—record dildo movements in pass 1, breast play in pass 2, eye control in pass 3 to create personalized sequences. Bukkake actions are now recordable too.





Editorial Review
The Screw-In Simulator series occupies a distinctive niche in the adult game landscape: hyper-specific onahole simulators that prioritize tactile customization and fetish variety over narrative. Vol. 3 continues this formula while leaning heavily into absurdist fantasy elements—petrification, chocolate transformation, shrinking—that distinguish it from the more grounded sexuality simulators dominating the genre.
What sets this entry apart is the sheer customization depth. Beyond standard cosmetic swaps, the physics engine allows granular control over internal anatomy (elasticity, recoil responsiveness), fluid dynamics (squirt volume, lactation output), and body modification states. The Live2D animation framework means these adjustments reflect immediately in real-time reactions, creating a feedback loop that appeals to players who derive satisfaction from system mastery as much as visual content. The inclusion of 100+ customizable items—including niche additions like body writing, dildo vibration parameters, and limb toggle options—suggests the developers understand their audience’s desire for specificity and control. Time stop and petrification mechanics add a mild power-play dimension to the simulation, though these function more as novelty modifiers than narrative drivers.
The integration of fetish-specific animations (genital expansion, urolagnia, bukkake, futanari variants) indicates familiarity with contemporary adult game taxonomy, though the synthetic nature of the appeal here—watching a character respond to mechanical input rather than inhabiting a scene—will feel emotionally distant to players seeking immersion or roleplay.
This is a simulator for collectors and customization enthusiasts who value detailed mechanical systems and niche fetish representation over narrative cohesion or character development. If you’re drawn to interactive sex toys with deep menu options and want to experiment with extreme body modifications in a low-stakes fantasy context, the free trial justifies exploration.
This Week’s Top Rankings:
Related Tags:
Animation | Simulation | Restraint | bukkake | futanari
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Interested? Get the free trial here ↓



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