Knock Knock: Room Defense
Knock Knock: Room Defense is made and published by Joy Net Games. AppBrain is an independent app data site and isn't affiliated with Joy Net Games. The app name, icon, screenshots and description belong to Joy Net Games and are shown as published on the App Store.
AppBrain's verdict
NewLoved by users- Rating on App Store
- 4.72
- 295 ratings
- Last updated
- October 26, 2026
- Size
- 553.4 MB
Knock Knock: Room Defense came out 67 days ago. Users love it: 4.7 stars from 295 ratings.
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Store listing
By Joy Net Games, from the App Store
Description by Joy Net Games Written by the developer, not by AppBrain. Click to read.
When your city becomes the hunting ground for ghosts and monsters... "Knock, knock." Someone's knocking on your door...
"Shh, don't make a sound, and don't open the door."
Creatures from age-old tales and urban legends are trying to break into your house. Your job? Close the door and defend it with your heroes as your heart pounds with excitement and no fear.
Schools, hospitals, hotels, streets, and office buildings—the most mundane locations become thrill-filled tower defense challenges. Get ready for stunning visuals and smooth controls in 5-minute matches!
[Five Main Features to Define New Horror Tower Defense]
※ Choose your room, close the door, relax, and level up!
Ghosts are here and there's no escape? Well—kick back and relax!
Choose your room, close the door, and kick back to level up in dreams and summon heroes to build your defense line! It's up to you to defend the ghosts and monsters at night!
※ Strategize to turn the table in the mind game
No risking your life, but more than hide-and-seek! Everything from the beds, doors, to your heroes can be leveled up, because the whole room is your defense line. Build the right lineup and plan wisely for every challenge and event. Every win is guaranteed to be rewarding.
※ Immersive visual experience
Dive into the immersive eerie world with a distinct gothic chibi-style aesthetic. Is it blood or wine in the cup held by the vampire? Why is the killer with a chainsaw wearing a cute bunny mask? A hundred unique and stylized heroes and ghosts with cute horror elements.
※ Wide selections of avatars and instances
Turn into a ghost hunter and explore all kinds of haunted locations—from a train with lingering phantoms, a dormitory echoing with singing at midnight, to a mysterious underground cave. Now, pick your avatar from a wide collection and brace yourself for the ghost chase.
※ Fast and exciting tower defense battle
Grab your phone and start a 5-minute no-stress match anytime, anywhere! Quality tower defense fun made simple and fast.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 553.4 MB
- Content rating
- Medium
Technologies used by Knock Knock: Room Defense
Releases
Updates seen on the App Store- Version
- 10000.0.72
- Launched
- September 2026
No changelog data
Alternatives
Similar apps and more from Joy Net GamesMore from Joy Net Games
Rankings
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About the app and developer
About Knock Knock: Room Defense
Knock Knock: Room Defense is a games app developed by Joy Net Games.
User Ratings
Knock Knock: Room Defense is rated 4.72 out of 5 stars. The rating is based on 300 ratings.
App Information
Knock Knock: Room Defense is freely available from the App Store. The app size is 553.45 MB. The latest version available is 10000.0.72. The last update was on October 26, 2026.
Technical Requirements
The app has a content rating of Medium Maturity. The app has been available on the App Store since September 2026.
Developer information for Joy Net Games
Address:
Frequently asked questions about Knock Knock: Room Defense
Is Knock Knock: Room Defense free?
Yes. Knock Knock: Room Defense is free on the App Store.
Is Knock Knock: Room Defense still available?
Yes. Knock Knock: Room Defense is on the App Store, and the last update we saw was on October 26, 2026.
How large is Knock Knock: Room Defense?
Knock Knock: Room Defense is 553.45 MB.
Is Knock Knock: Room Defense suitable for children?
App Store gives Knock Knock: Room Defense a medium maturity rating, so it is not meant for young children.
How do people rate Knock Knock: Room Defense?
Knock Knock: Room Defense scores 4.72 out of 5 stars, from 295 ratings on the App Store.
Who made Knock Knock: Room Defense?
Knock Knock: Room Defense was developed by Joy Net Games. It is listed in the games category on the App Store.