circloO - Physics Platformer

Contains adsIn-app purchases
12.7K reviews
Content rating
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About this game

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 1500 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! ๐Ÿ˜Š

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. ๐Ÿ˜ƒ
- 53 fun, growing, ever more challenging levels! Can you complete the six almost-but-not-quite-impossible Hard Mode levels?
- All levels from circloO 2 and the original circloO, plus twelve 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 two to three hours to complete. Level times are saved, so you can try to beat your own highscores and speedrun levels after that!
- There's also a level editor!
- Relaxing yet challenging physics puzzle platforming fun!

I'm very happy that circloO 2 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.

"Itโ€™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 youโ€™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!
Updated on
Feb 2, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

12.3K reviews
Symphony Thaggard
April 20, 2023
This game is awesome ๐Ÿ‘Œ!!! I mean- there are ads every 2 levels, but the levels slowly get harder - at the point I'm at, I get 30 seconds of ads for 30 mins of gameplay! I also have an idea for a donor section :D I'm sure lots of people would use it. I also have an idea for an online multiplayer funded by donors or whatever ใƒฝ(๏ผ›โ–ฝ๏ผ›). In this mode, everybody creates a puzzle together. Every round, everyone adds a single piece and tries getting to the goal (these are just a few ideas) Great game!!!
108 people found this review helpful
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Jordan Skinner
August 13, 2022
An interesting concept. I like how the levels build on themselves stage by stage. My main gripe is that after the first few which require more puzzle-like thinking, the levels quickly become about landing very difficult "trick shot" moves, often over and over, in order to get the goal. It quickly gets frustrating realizing that once again the level demands spending time perfecting one very specific move that I'll likely necer do again, just to get the ball in the exact right spot to score.
79 people found this review helpful
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Calvinn Jensen
September 14, 2022
In general, great puzzle game with a wonderful simplicity that mixes with 5he use of one's brain. You have to move a ball around via left/right buttons. But do not be fooled, it sounds more interesting than this. For you have to move the ball in a circle with the goal of attaining a certain goal, of which is represented by another small circle. The large circle expands as you pass each test (getting the mini ball goal), and the level ends after 7 tests. Once again, I would recommend this game.
41 people found this review helpful
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What's new

Thank you for playing circloO! This update contains the following:
- New, additional music!
- Google Play Games cloud saving & achievements
- You can now make bigger levels in the editor, and use the new Special collectable
- And, of course, some bugfixes