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Knock Knock: Room Defense

Joy Net Games · Games · 1mo old

Free + IAPNew
◆ ProTrack this app App Store

Performance · Worldwide

Projected run-rate
◆ Pro

Downloads & Revenue estimates

Monthly, by storefront, with daily history

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Rating · WW

4.5★

348 ratings

Chart position

Rank history — US · Top Free

Apple's Top Free chart — free apps ranked by recent downloads.

Top FreeTop Grossing

Ratings count — US

199

Listing

About

[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.

Released
Sep 3, 2026
Category
Games
Content rating
WWUSGBDEJPINBR

#77latest · best #4 in 90d

Role PlayingStrategy
◆ Pro4 charts locked

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  • Daily RevenueModeled in-app revenue per day, worldwide or by storefront
  • Daily DownloadsModeled installs per day, with the monthly trend
  • Top MarketsWhere it charts and earns, country by country
  • Keyword RankingsWhich App Store searches it ranks for, and where
Unlock everything →
12+
Price
Free
In-app purchases
Yes
Developer site
privacy.joynetgame.com ↗

Screenshots

7
Knock Knock: Room Defense screenshot 1Knock Knock: Room Defense screenshot 2Knock Knock: Room Defense screenshot 3Knock Knock: Room Defense screenshot 4Knock Knock: Room Defense screenshot 5Knock Knock: Room Defense screenshot 6Knock Knock: Room Defense screenshot 7