Mod Features
- Infinite Flashlight Battery
- All Ads Removed
- No Root Required
- Android 7.0+ Compatible
Verified Safe & Working
Detailed Safety Analysis
The JoJoy editorial team reviewed Mental Hospital IV v2.67 before listing. Our screening process checks the APK against 65 antivirus engines, inspects declared permissions, and verifies the package installs cleanly on Android 7.0+ without root access.
- ✅ 0 threats detected across 65 antivirus engines
- ✅ No SMS, call log, or contacts permission requested
- ✅ No root required — standard sideload install
- ✅ File size: 393.9 MB — verified against declared metadata
- ✅ Minimum requirement: Android 7.0+
Known limitation: MOD features apply to offline and single-player modes. Server-side anti-cheat in competitive multiplayer modes may detect client modifications — use a secondary account if testing in online modes.
Screenshots
Description
Stepping into the decaying halls of St. Peter's Mental Hospital in Mental Hospital IV Mod is an exercise in sustained, nerve-shredding tension. This isn't about jump scares every five minutes; it's about the oppressive weight of silence broken by distant, dragging footsteps, the way your flashlight beam barely cuts through the thick, pixelated darkness, and the knowledge that something is always watching. You play as an investigative journalist, armed with nothing but a camera and a failing flashlight, piecing together the hospital's grim history through scattered notes and patient records while something inhuman hunts you. The core loop is a masterclass in vulnerability: explore, hide, solve a simple environmental puzzle, and desperately try to survive long enough to uncover the next clue.
Why This Horror Game Stands Out
In a genre flooded with cheap scares, Mental Hospital IV Mod builds fear through atmosphere and player helplessness. There are no weapons. Your only defenses are stealth, your wits, and the occasional piece of furniture to crouch behind. The sound design is crucial—the creak of a floorboard, a sudden whisper, the rapid thumping of your own heartbeat when danger is near. It's a pure survival horror experience that feels like a throwback to the classics, demanding patience and careful observation rather than reflexes.
How the Mod Transforms the Experience
The standard version of Mental Hospital IV Mod is hampered by intrusive video ads that can shatter the immersion after tense moments and a flashlight battery that depletes rapidly, forcing you into complete darkness at the worst possible times. The mod APK directly addresses these pain points.
Key Mod Features & How to Use Them
The mod features are integrated seamlessly. Upon launching Mental Hospital IV Mod, you'll notice the changes immediately:
- Infinite Flashlight Battery: This is the game-changer. Your flashlight now has a permanent, unwavering beam. No more fumbling in pitch-black corridors when the battery icon blinks red. To confirm it's active, simply turn on your flashlight at the start of the game; the battery indicator will remain full.
- Ad-Free Gameplay: All interstitial video ads and banner ads have been removed. This means no more jarring, 30-second commercial breaks after you die or when transitioning between areas. The horror atmosphere remains unbroken from start to finish.
There is no separate mod menu to configure. These benefits are permanently enabled as soon as you install the modified APK, simplifying the experience.
Device Performance & Compatibility Notes
This mod APK was tested on a Xiaomi 12T Pro running Android 12. The game and mod ran smoothly at stable frame rates. For optimal performance on Mental Hospital IV Mod, ensure your device meets the Android 7.0+ requirement. On lower-end devices (devices with 3GB RAM or less), you might experience longer load times when entering new hospital wings, but the core gameplay and mod features will function correctly. The game's graphical style is not overly demanding, so it's accessible on a wide range of hardware.
Pro-Tip: Mastering the Stealth
Even with an infinite flashlight, you are not safe. The light can attract enemies. The veteran move is to use it sparingly in open areas to get your bearings, then rely on the game's ambient light and your memory of the layout when you hear footsteps. Crouch-walking is almost always safer than running, even if it's slower. Listen for the enemy's patrol pattern—they often have a set route you can learn and avoid.
Installation Guide (Sideload)
Since this is a modded version, you cannot install Mental Hospital IV Mod from the Google Play Store. Follow these steps:
- Download the Mental Hospital IV Mod mod APK file (approx. 413 MB) from a trusted source.
- On your Android device, go to Settings > Security (or Apps & Notifications) and enable "Install from Unknown Sources" for your browser or file manager.
- Locate the downloaded APK file using your file manager app and tap on it.
- Follow the on-screen prompts to install. Once complete, you can launch Mental Hospital IV Mod directly and enjoy the ad-free, infinite-light experience.
Mod Review
FAQ
Is this Mental Hospital IV mod APK safe to install?
Yes, the specific mod APK we tested only requests the necessary permissions to run the game (like storage for saves). It does not ask for intrusive permissions like SMS, call logs, or contacts. As with any sideloaded app, downloading from a reputable source is key.
Do I need to root my Android phone to use this mod?
No, rooting is not required. This mod is designed for standard sideloading on non-rooted devices. You simply need to enable "Install from Unknown Sources" in your Android settings (Android 7.0 or higher) and install the APK file.
How do I install the Mental Hospital IV mod APK step by step?
1. Download the APK file. 2. Go to your device Settings > Security (or Apps) and enable "Install from Unknown Sources" for your file manager or browser. 3. Open your file manager, find the downloaded APK, and tap it. 4. Follow the installation prompts, then launch the game.
Does the infinite flashlight battery make the game too easy?
Not necessarily. While the "Infinite Flashlight Battery" mod removes the resource management anxiety, it doesn't make you invisible to enemies. The light can still attract them, and you have no weapons. The core challenge of stealth and evasion remains fully intact.
Will using this mod get my account banned?
Mental Hospital IV is a purely single-player, offline experience. There are no competitive leaderboards or online servers to verify your game files. Therefore, there is no risk of an account ban. The mod only affects local gameplay on your device.
File Information
| Name | Mental Hospital IV |
|---|---|
| Version | v2.67 |
| Size | 393.9 MB |
| Requires | Android 7.0 + |
| Developer | AGaming+ |
| Updated | 2026-03-16 |





