Dark Nest: Snake Contract

Males with Snake Heads and Females with Snake Tails! And You—the Only Human!

In Nidus, humans teeter on the brink of extinction, and the world is now home to a new species—Serphids.

The most powerful among them, the Pythons, established the Python Royal City beneath the one and only Sun.

Meanwhile, venomous Serphids carved out lives in the Lawless Land, building a dazzling civilization in the dark.

You play the Human Instructor, admired and sought after by all sides, and train your students, helping them chase their dreams.

Traveler from Another World, Bai Suzhen! Syndicate Heiress King Cobra! Farm Girl Duelist Hognose Snake! And You—Their Instructor!

Bai Suzhen, a gentle, kind girl from another world, excels at medicine. You see her as a student, but she keeps calling you "Xianggong" for some reason. Team up to practice alchemy and run a clinic together!

Dolly, raised on a farm west of Python Royal City, thought she would spend her life raising mice—until an accident ignited her dream of becoming the strongest Snake Duelist. Help her pursue that dream and become the best there is!

Kayla, a young lady from a crime syndicate family in the Mist Domain, is both a diplomat and an explorer. Join her on adventures and in uncovering buried history!

Nearly Forty Unique Snake Girl Characters! Each Based on a Real-World Species!

King Cobra, Reticulated Python, Burmese Python, Green Anaconda, Ball Python, Bamboo Pit Viper, Hognose Snake, Corn Snake, Black Kingsnake, Rainbow Boa, Red-Tailed Boa, Chinese Green Snake, Olive Python, Blood Python, Many-Banded Krait...

Nidus features nearly forty gijinka snake girls, most with unique skills and affection systems. Lead your students to spar with them, polish combat skills, and make friends!

Training Plans! Romance Sim! Tournaments! Alchemy! Exploration! Socializing! Mini-Games Galore!

In Nidus, you can set training plans for your snake girls, build relationships with them, and take them to socialize with others. Enter tournaments, practice alchemy, explore, make friends, and enjoy a wide array of mini-games!