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Knock Knock: Room Defense
Enjoy 404 lucky draws!
Free · In‑App Purchases
[Special Rewards] 404 Draws, Character Skin, Random Orange Hero, and Limited Decor!
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.
Events
1. Version content upgrade and optimization
2. Known issues fixed
The developer, Joy Net Games, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- JOY MOBILE NETWORK PTE. LTD.
- Size
- 562.1 MB
- Category
- Roleplaying
- Compatibility
Requires iOS 15 or later.
- iPhone
Requires iOS 15 or later. - iPad
Requires iPadOS 15 or later. - iPod touch
Requires iOS 15 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 17 more
- English, Arabic, French, German, Indonesian, Italian, Japanese, Korean, Malay, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese
- Age Rating
13+
- 13+
- Frequent
Cartoon or Fantasy Violence
Contains
Advertising
Messaging and Chat
- In-App Purchases
Yes
- 0.99 Pack $0.99
- 4.99 Pack $4.99
- 2.99 Pack $2.99
- 10.99 Pack $10.99
- 0.29 Pack $0.29
- 1.99 Pack $1.99
- 19.99 Pack $19.99
- 14.99 Pack $14.99
- 49.99 Pack $49.99
- 99.99 Pack $99.99
- Copyright
- © Joy Net Games