# Knock Knock: Room Defense — Enjoy 404 lucky draws!

> Horror tower defense game where you defend rooms from monsters with summoned heroes. (iPhone/iPad app by JOY MOBILE NETWORK PTE. LTD..)

- Source: https://appshunter.io/ios/app/knock-knock-room-defense/id6786741117 (this page in markdown: same URL + `.md`)
- Developer: [JOY MOBILE NETWORK PTE. LTD.](https://appshunter.io/developer/1688367866)
- Category: Games, Role Playing, Strategy
- Price: Free with in-app purchases
- Rating: 4.71/5 from 140 App Store ratings · 14 written reviews indexed
- Age rating: 12+
- Requires: iOS 15 · 535 MB
- Languages: Arabic, English, French, German, Indonesian, Italian, Japanese, Korean, Malay, Polish and 8 more
- Released: 2026-09-03
- Data updated: 2026-09-09
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/knock-knock-room-defense/id6786741117/reviews.md

## What is Knock Knock?

[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.

## Key features

- Strategic room defense
- Hero summoning and leveling
- Gothic chibi art style
- 5-minute matches
- Multiple haunted locations
- Avatar selection

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 1.99 Pack | $1.99 | one-time |
| 2.99 Pack | $2.99 | one-time |
| 14.99 Pack | $14.99 | one-time |
| 29.99 Pack | $29.99 | one-time |
| 0.99 Pack | $0.99 | one-time |
| 4.99 Pack | $4.99 | one-time |
| 10.99 Pack | $10.99 | one-time |
| 49.99 Pack | $49.99 | one-time |
| 99.99 Pack | $99.99 | one-time |
| 19.99 Pack | $19.99 | one-time |
| 299.99 Pack | $299.99 | one-time |


## Chart rankings

- #79 in Top Free · Role Playing (US App Store)
- #109 in Top Free · Strategy (US App Store)
- #181 in Top Grossing · Role Playing (US App Store)
- #195 in Top Grossing · Strategy (US App Store)

## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/knock-knock-room-defense/id6786741117/reviews.md

### 5/5 — Great Game

*2026-09-04*

Animation is dope and the game is a good time!

### 4/5 — Legal

*2026-09-04*

Não aquele grande jogo q falaram q seria mas é um jogo legal

### 5/5 — Love the game

*2026-09-04*

The game great

### 1/5 — Enganação

*2026-09-04*

Uma coisa na propaganda e outra no jogo.

### 5/5 — Really fun to play :)

*2026-09-03*

I enjoy playing it. It’s fun and good designed. Worth to try!

### 5/5 — Legal

*2026-09-03*

Legal

### 5/5 — Игра топ!!

*2026-09-03*

Очень долго ждала игрушку, и вот сегодня скачала (по предзаказу) ииии игра ваще улёт) 🔥Процветания разработчикам) Только не забрасывайте проект 😃😄

### 1/5 — 404 invocation ?

*2026-09-03*

Je n’ai eux 0 invocation bonus en étant pré inscription

### 5/5 — Great!

*2026-09-03*

I love this game, really fun and a great experience!!

### 1/5 — Can’t get in

*2026-09-03*

Only get a black screen when trying to load the game. Doesn’t work

## Frequently asked questions about Knock Knock

### What is Knock Knock: Room Defense?

Knock Knock: Room Defense is a horror-themed tower defense game where players defend their rooms from incoming creatures by strategically placing and upgrading heroes. The game features quick, 5-minute matches and a distinctive gothic chibi art style.

### How long are the matches in Knock Knock: Room Defense?

Matches in Knock Knock: Room Defense are designed to be fast and exciting, typically lasting around 5 minutes. This allows for quick gameplay sessions anytime, anywhere.

### What kind of locations can I defend in Knock Knock: Room Defense?

Knock Knock: Room Defense offers a variety of mundane locations transformed into thrilling defense challenges. These include schools, hospitals, hotels, streets, and office buildings, each with its own eerie atmosphere.

### Does Knock Knock: Room Defense have ads?

No, Knock Knock: Room Defense does not contain advertisements. The game is free to download and play, with optional in-app purchases available.

### What is the art style of Knock Knock: Room Defense?

The game features an immersive and eerie world with a distinct gothic chibi-style aesthetic. This unique visual approach combines cute horror elements with stylized characters and environments.

### Can I play Knock Knock: Room Defense offline?

The provided data does not specify whether Knock Knock: Room Defense supports offline play. It is recommended to check the app store page for the most up-to-date information on connectivity requirements.

### What devices is Knock Knock: Room Defense available on?

Knock Knock: Room Defense is available on iPhone, iPad, and iPod devices. It is designed for iOS users looking for a mobile gaming experience.

### How often is Knock Knock: Room Defense updated?

Knock Knock: Room Defense was last updated on September 5, 2026, with version 10000.0.56. This indicates recent development activity, suggesting regular updates are likely.

## Version history (last 4 releases)

### 10000.0.56 — 2026-09-05

1. Version content upgrade and
optimization
2. Known issues fixed

### 10000.0.66 — 2026-09-05

1. Version content upgrade and optimization
2. Known issues fixed

### 10000.0.44 — 2026-08-28

No release notes.

### 10000.0.62 — 2026-08-27

1. Version content upgrade and optimization
2. Known issues fixed

## More apps by JOY MOBILE NETWORK PTE. LTD.

- [개판오분전](https://appshunter.io/ios/app/id6449524661)
- [こんにちワン！ヒーロー](https://appshunter.io/ios/app/id6451257039)
- [Oh My Dog - Heroes Assemble](https://appshunter.io/ios/app/oh-my-dog-heroes-assemble/id6462645243)
- [버섯커 키우기](https://appshunter.io/ios/app/id6467117398)
- [キノコ伝説：勇者と魔法のランプ](https://appshunter.io/ios/app/id6473767344)
- [Legend of Mushroom](https://appshunter.io/ios/app/legend-of-mushroom/id6475333787)

All apps by JOY MOBILE NETWORK PTE. LTD.: https://appshunter.io/developer/1688367866

## Related topics

[knock knock](https://appshunter.io/ios/topics/knock-knock) · [404mobile](https://appshunter.io/ios/topics/404mobile) · [lucky defense heroes](https://appshunter.io/ios/topics/lucky-defense-heroes)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*