KeyMaster: Prologue Horror

Games_BM Adventure Contains ads

Speedrun horror in an abandoned hospital. Use logic, find keys, and run !

Rating: 3.6; 5 ratings
Downloads: 5K+; on Google Play
Price: Free; No in-app purchases
Updated: Feb 11; 2026 · v1.0.5

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About KeyMaster: Prologue Horror

You wake up in complete darkness. Alone.
No hints. Only your logic, the keys you find, and the impenetrable dark.

An abandoned 1980s hospital holds its grim secret. This is a speedrun horror: you need to think and act fast before the old nurse starts patrolling the halls.

You might beat it in 15 minutes. Or it might take you a full hour to find the way out. Not everything is as simple as it seems! You will face challenging puzzles, and your only protection is a manual save system. Use it wisely!

IMPORTANT: Be sure to read the in-game guide from the main menu! It's almost impossible to figure everything out without it.

Can you uncover its secrets and escape? How long will you last before you give up?

App details

KeyMaster: Prologue Horror is a free Adventure app for Android with 5,000+ installs on Google Play and a 3.6/5 average rating from 5 ratings. It was released on February 1, 2026 and last updated on February 11, 2026. It's developed by Games_BM. It requires Android 8.0 or later. The app contains ads.

Category: Adventure
Rating: 3.6 / 5 (5)
Installs: 5,000+
In-app purchases: No
Ads: Contains ads
Version: 1.0.5
Requires Android: 8.0
Content rating: Rated for 7+
Released: February 1, 2026
Last updated: February 11, 2026
Developer: Games_BM

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Alternatives to KeyMaster: Prologue Horror

Looking for apps like KeyMaster: Prologue Horror? Here are 6 similar Android apps on Google Play. The highest rated is Meridian 157: Chapter 2 (4.9/5).

KeyMaster: Prologue Horror vs. alternatives
App	Rating	Price	Installs	Last updated	Compare
KeyMaster: Prologue Horror	3.6 / 5	Free	5,000+	Feb 11, 2026
Meridian 157: Chapter 3	4.8 / 5	3.49 USD	10,000+	Oct 27, 2026	Compare
Another Tomorrow	4.4 / 5	1.99 USD	1,000+	Aug 22, 2026	Compare
Forgotten Hill Disillusion	4.6 / 5	5.49 USD	5,000+	–	Compare
Forever Lost: Episode 3	4.5 / 5	2.99 USD	10,000+	–	Compare
MORAX: A Horror Story - Part 2	–	0.99 USD	50+	Jan 5, 2026	Compare
Meridian 157: Chapter 2	4.9 / 5	2.99 USD	10,000+	Aug 25, 2026	Compare

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KeyMaster: Prologue Horror

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About KeyMaster: Prologue Horror

Alternatives to KeyMaster: Prologue Horror

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