Mysterious Abandoned Building
Game Description:
The game takes place inside a decaying, multi-floor abandoned building filled with dark corridors, strange rooms, and hostile creatures. The focus is on slow exploration, environmental tension, and navigating the building’s floors while encountering enemies and scripted events. Each update typically introduces new rooms, enemy animations, or mechanics, and reflects the author’s iterative development style. Unlike his more combat-focused projects, Nazo no Haibiru leans into a claustrophobic horror tone, highlighting tight spaces, surprise encounters, and survival-style progression. Players must explore carefully, pay attention to environmental clues, and avoid or endure encounters with the building’s residents.
- Extract and run.
[add] ・Added two H anime to the test map (Mizuhime, Squeezing Nest) [amendment] ・Changed the avoidance motion to X→D key (and changed D's debug key to W)
・Some modifications to the monster dot map graphics★Character introduction[Mizuhime]
A monster that appears in the waterhole. It clings to your feet to squeeze out the milk that approaches you carelessly.[Sperm-milling nest]
Monsters with powerful powers may be building webs and capturing prey. The way prey is managed differs depending on each monster, but the captive victim is no longer sane and cannot be saved.Sometimes you need to hide in the forest in order to evade surveillance.
- Dual Core Pentium or equivalent Processor.
- Intel HD 2000 or equivalent Graphics.
- 405.0 MB of free disk space (Recommended to have twice as much free disk space than this).
Mysterious Abandoned Building - Onhold - v.Demo v1.27 Links And Mirrors
About The Game: Mysterious Abandoned Building is a porn game made on Others game engine. This game is rated M and meant for adults with explicit contents and strong language. It is advised to read the tags to get an idea about the game. The current available version is v.Mysterious Abandoned Building. THe contents of the game is Uncensored. Mysterious Abandoned Building is developed and distributed by Zell23, Please support Zell23 if want the development of Mysterious Abandoned Building game going or want to see more new games from them in future. The download links are crawled and gathered from various public sites. We do not host/modify or alter the contents. The uploader is responsible for the DMCA.
Mysterious Abandoned Building's latest build v.Demo v1.27 is available in Windows platforms and currently Onhold. We last updated this game in July 28, 2026.
Mysterious Abandoned Building's latest build v.Demo v1.27 is available in Windows platforms and currently Onhold. We last updated this game in July 28, 2026.
