

circloO
Florian van Strien · 2022 · Puzzle Platformer, Physics, 2D Platformer, Abstract, Precision Platformer
PC
Positive90% · 21
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About circloO
circloO is a colorful physics platformer in a growing circle. This game contains all levels from circloO and circloO 2, plus twelve brand-new bonus levels and a level editor! You can also play levels uploaded by other players from the editor! There are already over 4000 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 your arrow keys 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!
With millions of plays on other platforms, circloO has been enjoyed by many and I hope you'll enjoy it too! Have fun and I'm happy to hear what you think!

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!
- 56 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.
- 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!
- Create your own levels in the level editor! Then share them with the community so everyone can enjoy them!
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 your arrow keys 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!
With millions of plays on other platforms, circloO has been enjoyed by many and I hope you'll enjoy it too! Have fun and I'm happy to hear what you think!

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!
- 56 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.
- 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!
- Create your own levels in the level editor! Then share them with the community so everyone can enjoy them!
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
You can see my playtime... Absolutely formidable physics-based platformer puzzle game. The set levels are good and lead to interesting challenges but the user-made levels just shake everything up! How do people make that kind of stuff with the level editor? Look through the playlists, it's really good.3 found this helpful
circloO is a physics-driven puzzle platformer developed and published by Florian van Strien that proves how a simple idea can evolve into something remarkably creative through strong execution and thoughtful design. Built around momentum, environmental interaction, and constantly changing level layouts, the game takes a minimalist concept and transforms it into an experience that feels surprisingly deep without becoming complicated. Instead of overwhelming players with combat systems, skill trees, or narrative-heavy progression, circloO focuses entirely on movement and problem-solving, creating a gameplay loop that rewards experimentation and precision. At its core, the game places players in control of a small ball navigating circular environments filled with obstacles, slopes, moving objects, and physics-based challenges. The objective initially appears straightforward: collect circles to progress. However, each collected objective causes the level itself to expand outward, preserving everything already present while introducing entirely new areas around it. This single mechanic becomes the foundation for nearly every puzzle and creates one of the game's most memorable strengths…1 found this helpful
What I liked: -unique concept -relaxing music -for the most part, actually well playtested and fair levels What I disliked: -the levels that were clearly not playtested or just specifically designed to by as annoying as possible -the stupid achievements My verdict is negative because when this game gets bad it gets REALLY BAD. The fact that you only use 2 buttons to move in this game makes you feel so helpless when it requires you to go back and forth just to get 1 milimeter higher or to somehow get over all those circular obstacles. Like 80% of this game is quite good, but the remaining 20% is just so horrendous that it ruined my opinion on the entire thing.
great game
/ / circloO level / Made with circloO Level Editor totalCircles 1 0 / EDITOR_TOOL 1 select / EDITOR_VIEW 1500 1737.57 0.46 / EDT 27368 / _SAVE_TIME_1753167345000_END levelscriptVersion 9 COLORS 60 grav 1 270 c 1420.50 1448 25.104780197143555 < 0 c 1579.50 1448 25.104780197143555 < 1 / LE_ARC_DESCRIPTION 1500 1500 330 210 103.58 -1 -1 2 3 / SKIP 7 * 1 + 0 0 repeatchp 330 96.42 60 -2 +* 0 chp 210 96.42 chmake_arc 0 3 = < 2 y 1501 1665 1 1 1 bullet < 3 ic 'i' 1500 1510 1 < 4 l_at 1435 1323 1464 1323 3 < 5 l_at 1450 1351 1450 1322 3 < 6 l_at 1470 1320 1477 1339 3 < 7 l_at 1486 1321 1473 1351 3 < 8 l_at 1522 1318 1522 1334 3 < 9 l_at 1542 1333 1519 1333 3 < 10 l_at 1539 1318 1539 1347 3 < 11 l_at 1442 1360 1442 1387 3 < 12 l_at 1455 1385 1442 1385 3 < 13 l_at 1454 1387 1454 1376 3 < 14 l_at 1463 1360 1463 1386 3 < 15 l_at 1476 1385 1461 1385 3 < 16 l_at 1474 1360 1474 1386 3 < 17 l_at 1483 1361 ♥♥♥♥ 1377 3 < 18 l_at 1496 1361 1484 1388 3 < 19 l_at 1507 1387 1507 1364 3 < 20 l_at 1454.50 1373 1441.50 1373 3 < 21 l_at 1454.50 1362 1441.50 1362 3 < 22 l_at 1454 1371.50 1454 1360.50 3 < 23 l_at 1501 1364 1513 1364 3 < 24 l_at 1501 1385 1513 1385 3 < 25 l_at 1520 1361 1520 1388 3 < 26 l_at …
a game with circles
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