# circloO - Physics Platformer — Unique circular physics puzzle

> Circular physics platformer with level editor and player-created content. (iPhone/iPad app by Florian van Strien.)

- Source: https://appshunter.io/ios/app/circloo-physics-platformer/id1612957699 (this page in markdown: same URL + `.md`)
- Developer: [Florian van Strien](https://appshunter.io/developer/1603079263)
- Category: Games, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 4.82/5 from 2,431 App Store ratings · 131 written reviews indexed
- Age rating: 4+
- Requires: iOS 10 · 63 MB
- Languages: English
- Released: 2022-04-15
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/circloo-physics-platformer/id1612957699/reviews.md

## What is circloO?

circloO is a colorful physics platformer in a growing circle. This app version contains all levels from circloO and circloO 2, plus brand-new bonus levels! There's also a level editor and already over 10,000 levels created by players like you!

You're a small ball rolling around in a round level. Collect circles to grow the level circle. As it grows, everything stays in the level, so you'll have to avoid and use obstacles in everchanging ways. For example, a platform that was first very useful to gain height, may prove to be a challenging obstacle after the level has grown!

You can only move left and right, so you'll want to use features of the level carefully to jump and gain height. You'll discover all sorts of physics features, such as changing gravity, a sea of tiny blocks, strange contraptions and even planets with a gravity field. In challenging parts, you'll find yourself fully immersed, pressing the screen as hard as you can trying to get closer to finally collecting that next circle. But don't worry: you'll never have to start over a level, so you can always try again really quickly! And I can guarantee you'll feel amazing once you finally manage it!

circloO Complete features:
- Lots of cool physics features: ropes, pulleys, changing gravity and much more! I've included quite a few mechanics for you to discover.
- Over 75 fun, growing, ever more challenging levels! Can you complete the six almost-but-not-quite-impossible Hard Mode levels?
- There's also a level editor and an ever increasing number of player created levels!
- All levels from circloO 2 and the original circloO, plus 28 brand-new levels!
- Unique physics puzzles in each level.
- Great music and sound effects by Stijn Cappetijn.
- Minimalist and colorful graphics.
- The game will take most players three to five hours to complete. Level times are saved, so you can try to beat your own highscores and speedrun levels after that! Plus there are thousands of player-created levels to continue playing forever!
- Relaxing yet challenging physics puzzle platforming fun!

I'm very happy that circloO 2 on the web won the first Crazy Games developer contest out of 200 contestants! It was also third in the Kongregate contest of November 2018. You may remember it from CoolMath Games as well.

Reviews:
"It’s an excellent game that has a very playful and chilled out approach to the gameplay, whilst also featuring some wonderfully intricate level design. A very impressive puzzle platformer you’ll really want to roll with. Highly recommended." - Free Game Planet
"The difficulty scales upwards nicely and you're constantly rewarded for learning new skills as these always come up in future levels." - Jayisgames

The game contains occasional ads after a level, which can be removed with a one-time in-app purchase, which supports development as well.

Have fun and I'm happy to hear what you think!

## Key features

- Circular physics puzzles
- Level editor
- Player-created levels
- Unique physics mechanics
- Growing levels
- Hard Mode levels

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## What do users think of circloO?

Overall sentiment: positive

**Pros**

- 👍 Relaxing and enjoyable gameplay
- 🎨 Creative and unique levels
- 🎶 Calming background music
- 🧠 Challenging but not impossible
- 🕹️ Smooth and responsive controls
- 💻 Available on multiple platforms
- 🎉 Fun and addictive experience

**Cons**

- 🔍 Occasional performance issues
- 🕹️ Difficulty can be inconsistent
- 📺 Ads can be disruptive at times
- 🤑 Lack of free content/levels

**Commonly reported bugs**

- Glitches with level progression
- Inconsistent touch/click registration

**Most requested features**

- More levels and content updates
- Character customization options
- Improved level editor tools
- Difficulty settings or options

## Recent user reviews (10 of 131)

All indexed reviews: https://appshunter.io/ios/app/circloo-physics-platformer/id1612957699/reviews.md

### 4/5 — looks fun but

*2026-06-17, version 1.15.1*

it wont let me open it

### 5/5 — Amazing Game, Just one thing

*2026-05-25, version 1.15.1*

I have been playing circloO for half a year now and I am addicted to it. The mechanics, the style, everything about it is perfect. I just wanted to say it would be cool if you could add a feature where you could delete your levels before they become live, because I published a level (Compact Circle) and it had a few errors in it. Or instead of a deletion feature, you can go back in the level, make the adjustments, and then republish it. Just saying, it would be helpful. Thank you!

### 5/5 — WOAHHH

*2026-05-23, version 1.15.1*

this is so well executed and it’s a simple concept. creative, fun, challenging, it should have an award already! please know you are awesome!

### 3/5 — Feature Ideas

*2026-03-14, version 1.14.0*

Hi, I was thinking if you could add a new addition to this game. The feature is a Io game mode where players can go round and round a circle where every round gives money and you can upgrade the amount of money you get per time you go round the circle and a thing that lets you upgrade the ball size or circle size. Other than that 4 stars!

### 5/5 — Beautiful

*2026-02-28, version 1.14.0*

I like it!

### 4/5 — 🤷‍♂️

*2025-10-04, version 1.14.0*

The game is good 👍

### 4/5 — 4.5 Stars

*2025-10-02, version 1.14.0*

Love the game! The clean graphics, the option to turn off the timer, and just the cleverness of it really. And the ads are not that bad at all. The only drawback is not being able to get a bird’s eye view of the big circle as it grows. It gets less enjoyable to play as the circle gets bigger, for me anyway. The option to zoom in and out would be great. But otherwise, great game!

### 5/5 — 5 STAR GEME but…

*2025-08-26, version 1.14.0*

The game is 5 star but I do want some other things like a dedicated jump button and/or a rope collectable for the dinguses who don’t know you just attach a collectable to a object. Oh and when you play player levels you get points that can be used to get new “skins” and “textures” or whatever I thought of that in my dream. But other than that this game is a 5 star. :) Edit: make it so that when you go to the music, there is an option to make your own music piece by piece completed with drums and all of the other stuffs

### 5/5 — 5 STAR GEME but…

*2025-08-17*

The game is 5 star but I do want some other things like a dedicated jump button and/or a rope collectable for the dinguses who don’t know you just attach a collectable to a object. Oh and when you play player levels you get points that can be used to get new “skins” and “textures” or whatever I thought of that in my dream. But other than that this game is a 5 star. :)

### 5/5 — CircloO

*2025-08-06, version 1.14.0*

So good I wrote the name of the game correctly

## Frequently asked questions about circloO

### What is circloO - Physics Platformer about?

circloO is a physics platformer where you control a ball in a circular level. The goal is to collect circles, which causes the level to grow. As the level expands, you must navigate increasingly complex environments filled with obstacles and unique physics features.

### What are the key features of this game?

The game features over 75 challenging levels, a level editor for creating your own stages, and a vast library of player-created levels. It also includes various physics mechanics like changing gravity, ropes, and pulleys, offering a unique puzzle experience.

### How much does circloO - Physics Platformer cost?

The game is free to download and play. It contains occasional ads that appear after a level. These ads can be removed with a one-time in-app purchase, which also supports the game's development.

### What platforms is circloO - Physics Platformer available on?

Based on the description, this app is available on mobile platforms. The game also has web versions that have been recognized in contests and featured on gaming sites.

### What makes this game different from other physics puzzle games?

Its core mechanic of a growing circular level is unique. This dynamic environment constantly changes how players interact with obstacles and physics elements. The extensive level editor and community-created content also provide near-endless replayability.

## Version history (last 5 releases)

### 1.15.1 — 2026-04-08

Thanks for playing circloO! This update adds the following features to the level editor:
- New special connection types: Set Speed, Apply Impulse, Trigger and Trigger Random
- There's a new trigger type that allows you to directly respond to player input (left/right/both keys) or trigger every frame!
- You can now set defaults for each special connection type
- There are two special searches that allow you to find some unplayed levels

### 1.15.0 — 2026-04-07

Thanks for playing circloO! This update adds the following features to the level editor:
- New special connection types: Set Speed, Apply Impulse, Trigger and Trigger Random
- There's a new trigger type that allows you to directly respond to player input (left/right/both keys) or trigger every frame!
- You can now set defaults for each special connection type
- There are two special searches that allow you to find some unplayed levels

### 1.14.0 — 2025-03-17

Thank you for playing circloO! This update adds a daily challenge. It also adds some features to the level editor, including a triangle generator.

### 1.13.0 — 2024-09-27

Thanks for playing circloO! This update contains four new levels for people who supported the game by removing ads!
In addition, there are several level editor improvements:
- You can now choose a sound effect for collectibles
- There are several new Special Collectable options, e.g. to destroy all objects spawned by a generator, or to disable/enable collectables and portals.
- The load menu has been improved
- Bugfixes and more!

### 1.12.0 — 2024-04-09

Thanks for playing circloO! This update contains the following:
- Four extra levels in the first level pack, as well as some minor level changes, to smoothen the difficulty curve a bit
- The first page of the Featured tab may now show some older featured levels, if you already completed some of the current ones
- If you get a time on a leaderboard, that will now be displayed directly in the Player-Created Levels menu as well

## Apps similar to circloO

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## More apps by Florian van Strien

- [The Final Earth 2: Colony Sim](https://appshunter.io/ios/app/the-final-earth-2-colony-sim/id1603079261)

All apps by Florian van Strien: https://appshunter.io/developer/1603079263

## Related topics

[physics platformer](https://appshunter.io/ios/topics/physics-platformer) · [unique games](https://appshunter.io/ios/topics/unique-games) · [physics games based](https://appshunter.io/ios/topics/physics-games-based) · [platformer](https://appshunter.io/ios/topics/platformer) · [crayon physics](https://appshunter.io/ios/topics/crayon-physics) · [hard platformer](https://appshunter.io/ios/topics/hard-platformer) · [physics game](https://appshunter.io/ios/topics/physics-game) · [circle game](https://appshunter.io/ios/topics/circle-game) · [gyroscope games](https://appshunter.io/ios/topics/gyroscope-games)

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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 2026-08-27.*