You are a curious and adventurous man who visits a newly-opened Monster Girl's brothel. In this establishment, the power dynamic is reversed, and the seductive monster girls choose their clients to indulge in their darkest fantasies. With a diverse array of monster girls, each possessing distinct personalities and sexual preferences, your fate and pleasure lie in their hands.

Thrown into the unforgiving world of Monster Girls Prison, you are the only human inmate surrounded by dangerous and seductive monster girl criminals. Navigate the treacherous landscape of alliances, betrayals, and rough encounters with ruthless guards and warring gangs. Will you succumb to the charms of the cunning lamia, Helena, the dominant and unpredictable catgirl, Toka, or the guard who holds your fate, Milena? In this grimdark adventure, your survival and sanity hang in the balance.

Trapped in a monster girl dungeon, you must navigate a treacherous landscape of lust and desire in a desperate search for an escape. The dungeon is inhabited by a diverse array of seductive monster girls, each with their own unique abilities, appearances, and insatiable appetites for sex. From the coiling embrace of the Lamia to the slippery grasp of the Slime Girl, you are subjected to the whims and desires of the dungeon's inhabitants, who will stop at nothing to claim you as their mate.

You are the only human inmate in a high-security prison filled with dangerous and seductive monster girls. Navigate the treacherous world behind bars, surrounded by a diverse group of monster girls, including the cunning and manipulative lamia, Helena, and the fierce and unpredictable catgirl, Toka. Survive your grimdark sentence by dealing with ruthless guards like Milena, vying monster girl gangs, and illicit activities. Will you succumb to the dangers or turn the tables and create your own monster girl harem?

Transported to a fantastical realm where humans are subservient to monster girls, you must navigate the treacherous landscape and encounter various seductive creatures from the “Monster Girl Encyclopedia.” From the slow and sensual Lamia, Miyabi, to the rough and tumble Catgirl, Bonnie, and the BDSM-loving Dullahan, Alice, these monster girls will treat you according to their whims, issuing orders or using you for their pleasure. In a world where death is permanent and diseases can strike at any moment, your resilience and choices will be put to the test in this erotic and violent adventure.

You are the chosen one in a world overrun by sexy and powerful monster girls. With your unique ability to tame them through intense and passionate intercourse, you'll navigate the world, encountering various mamono such as Alice, the playful rabbit girl, or Akaname, the serpentine-tongued beauty. Join the hunter guild, quell local incidents, and rank up as the ultimate mamono tamer.

You are a poker enthusiast in your 20s, frequenting the unique “Lamia's Tail” bar, where enchanting monster girls invite you to play thrilling games of strip poker. Engage with the captivating Victoria, a nekomata with a charming and witty personality; Risha, a confident and aggressive werewolf; and Yoma, a mischievous catgirl dealer. Each game is an ever-changing and captivating experience, as you strive to improve your skills and indulge in the flirtatious atmosphere.

Inherit a mansion teeming with monster-human hybrid maids, each with their own unique traits and unconventional fetishes. Gwen, the timid and anxious goat mongirl, craves your protection and care, while Cetina, the dominant and adventurous shark mongirl, desires the thrill of the hunt. Navigate this extraordinary world, encountering a myriad of mongirls that challenge and entice you in equal measure.

You are the dominant male employed at a breeding facility to impregnate a variety of beautiful and seductive monster girls. Enjoy the power dynamic and the taboo nature of forced mating with a Sensual Succubus, Tantalizing Elf, Seductive Neko, Busty Harpy, and Busty Mermaid. Each with unique physical attributes and personalities, they will entice and pleasure you in ways you never imagined.

Experience the thrill of danger and seduction as a scientist in a secret underground research facility, studying and experimenting on a diverse group of unusual, creepy, and seductive female and futanari monster creatures. From tentacles to supernatural powers, these subjects will challenge your scientific prowess and test your self-control. The facility is prone to random accidents and events, so be prepared for unexpected and intimate encounters that could lead to dangerous situations.