# Circular Defense — Defense game with new feeling

> Flat design tower defense game with strategic circular turret placement. (iPhone/iPad app by Picola Inc..)

- Source: https://appshunter.io/ios/app/circular-defense/id1410103026 (this page in markdown: same URL + `.md`)
- Developer: [Picola Inc.](https://appshunter.io/developer/983881487)
- Category: Games, Casual, Strategy
- Price: Free
- Rating: 3.70/5 from 7 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 124 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2018-09-03
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/circular-defense/id1410103026/reviews.md

## What is Circular Defense?

They are coming closer towards the core!
Tower defence with a flat design.

◆How to play-
- Enemies come attacking from all four directions towards the core in the centre.
- Homing? Piercing bullets? Choose a circle from 6 kinds of variations as you wish and make your own defence line!
- Choose a circle and arrange by swiping, tap to make turrets-they are all easy to operate!
- Use resources by attacking enemies and strengthen the circle! Make it stronger! It becomes easier to capture the stages! 

◆Features
- You can play so smoothly, whenever you have some spare time!
- Use strategy? Try to be funny? You can arrange any way you like.
- Timing of arranging the circle and timing of using turret are important factor of the battle.
- There are more than 50 stages waiting for you from easy ones to quite difficult ones.

◆recommended for...
- Those who are fans of tower defence or defending games 
- Those who like strategy games that are very strategic 
- Those who enjoy a smartphone games that bring training elements.
- Those who want an efficient app to kill time while commuting.
- Those who want to enjoy a game with simple rules.
- Those that are looking for casual games for free.

Please give us your opinions and requests here.
https://www.picola.co.jp/contact-us

## Key features

- Unique circular turret defense
- Strategic placement and upgrades
- Over 50 challenging stages
- Easy to operate controls
- Smooth, time-killing gameplay

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/circular-defense/id1410103026/reviews.md

### 5/5 — Perfect.

*2022-11-12, version 1.0.6*

This game is so relaxing, doesn't take up much space, stress reliever. just perfect.

### 4/5 — 今後に期待ができるゲーム

*2022-08-30, version 1.0.6*

シンプルで分かりやすく年層関係なく楽しめる
追加要素に期待

### 4/5 — Great game

*2021-08-24, version 1.0.6*

I know that this probably won’t be read due to the game remaining unupdated for the past 2 years. But I just want to say that this is a fantastic game all in all. The reason I haven’t given 5 stars is due to the game feeling very short. Except for that it’s a great game.

### 5/5 — 👍

*2021-07-06*

Very good and fun game

### 4/5 — これが求めてたもの

*2020-10-04, version 1.0.6*

マジで最高です。分かりやすいシンプルなルールで、暇つぶしにはもってこいです。
ステージ数の増加、難易度の向上、新しい要素の追加に期待して⭐︎4とさせていただきます。

### 5/5 — おもしろいし世界観がいい

*2020-06-23, version 1.0.6*

ゆったりした感じで自分のとてもすきなタイプ。個人的な感想としてはエンドレスモードが欲しい。

### 4/5 — シンプルで面白い

*2020-05-07, version 1.0.6*

・現状、貫通弾オンリーで全ステージ完封できてしまうためバランス調整が必要。

・一つ一つドラッグ配置が必要なため多少ストレスを感じる。ワンタップあるいはスライドでの一括配置などがあるとストレスフリーでプレイできる。

### 4/5 — 癒し系のディフェンスゲーム

*2018-09-04, version 1.0.0*

かわいい円系防御設備を配置して、まったりしたテンポで迎撃する不思議な世界
ちょっとゆったりし過ぎかな？というのと、防御設備の差が分かりにくい欠点はあるけど、世界観は好き

### 5/5 — オシャレ

*2018-09-03, version 1.0.0*

雰囲気が好き

## Frequently asked questions about Circular Defense

### What is the gameplay like in Circular Defense?

Enemies attack the core from four directions. Players strategically place and upgrade circular turrets by swiping and tapping. The game features over 50 stages with increasing difficulty.

### Is Circular Defense free to play?

Yes, Circular Defense is free to download and play. It does not feature in-app purchases or advertisements.

### Does Circular Defense have ads?

No, Circular Defense is ad-free. Players can enjoy the game without interruptions from advertisements.

### What devices support Circular Defense?

Circular Defense is available on iPhone, iPad, and iPod devices. It is designed for iOS users.

### How often is Circular Defense updated?

The latest version of Circular Defense is 1.0.6, which was last updated on September 26, 2018. The game has not received updates since then.

### What is the age rating for Circular Defense?

Circular Defense has an age rating of 4+, making it suitable for younger players and families.

### Can I play Circular Defense offline?

The provided description does not specify whether Circular Defense can be played offline. However, many tower defense games are playable without an internet connection.

### What makes Circular Defense unique compared to other tower defense games?

Circular Defense features a flat design and a unique mechanic of using circular turrets that can be arranged and upgraded. The focus is on strategic timing of placement and turret usage.

## Version history (last 5 releases)

### 1.0.6 — 2018-09-26

- Minor bug fixes

### 1.0.5 — 2018-09-25

- Fix tutorial
- Fixed the appearance of the enemy
- Adjust game balance
- Minor bug fixes

### 1.0.4 — 2018-09-15

- Added stages 51 to 60
- Adjust game balance
- Minor bug fixes

### 1.0.3 — 2018-09-09

Minor bugfixes.

### 1.0.2 — 2018-09-08

· Adjust some stages.
· Minor bug fixes.

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## More apps by Picola Inc.

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All apps by Picola Inc.: https://appshunter.io/developer/983881487

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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 2026-06-01.*