Nightmare Manor – Infinite Prison [v1.0] [Tsuyoi Ko]

April 11, 2026F95

Remake of Nightmare Mansion
Have you heard of the urban legend about “nightmares”? Women fall into a coma after sleeping at night and remain unconscious, even tough no underlying causes can be found. It seems these women are having nightmares.

The protagonist, Kuroki Sana, and her best friend, Ujimiya Tomo, are struck by a nightmare one day, and when they come to, they find themselves in an unfamiliar place.
And they still don’t know. They are currently trapped in a prison of despair with no escape…

Thread Update: 2026-04-11

Release Date: 2026-04-11

Original Name: 悪夢屋敷・無限牢獄

Developer: Tsuyoi Ko DLSite – Ci-en – Twitter

Censored: Yes (Mosaics)

Version: 1.0

OS: Windows

Language: Japanese, English, Korean, Chinese (Traditional)

Store: DLSite

Other Games: Link

Genre:

2dcg, 2d Game, Female Protagonist, Japanese Game, Censored, Pixelart, Horror, Big Breasts, Rape, Vaginal Sex, Anal Sex, Multiple Penetration, Tentacles, Oral Sex, Groping, Titfuck, Monster, Handjob, Group Sex, Petrification, Footjob

Installation:

1. Extract and run.

Developer Notes:

Recommended for people like this

I like girls who are attacked by monsters.

I like horror, but I can’t handle gore.

I like bad endings.

I want to enjoy various situations at once.

About this work

– Erotic scenes (183 large-size pixels, 23 small-size pixels x 7 types. All erotic scenes are pixel animation!)

Interspecies sex, mind control, rape, reality alteration, petrification, sealing, tentacles, yuri, corruption…etc.

– There is a replay mode after clearing the game.

This game is a remake of “Nightmare Mansion,” the first game in the Nightmare series. Even those unfamiliar with the series can enjoy playing it.

This game features enhanced elements in every aspect, and you do not need to play the original “Nightmare Mansion.”

This game is primarily exploration-based. There are no combat or leveling elements.

This work contains horror elements.

The content has been greatly enhanced!!!

Development period of approximately 3 years! Full power!! Full power!! If we’re going to remake it, we’re going to give it our all!! We’re going to surpass our past selves!!!

Multilingual support!!!

Don’t worry if you don’t understand Japanese! We’ve translated it into three other languages besides Japanese! Let’s adventure together in a world of nightmares!

DOWNLOAD
Win: BUZZHEAVIER – DATANODES – MEGA – PIXELDRAIN – VIKINGFILE

Other Languages