
circloO is a colorful physics platformer in a round level. The level grows, so you'll have to avoid and use obstacles in everchanging ways. Enjoy a huge variety of physics challenges, from a sea of tiny blocks to planets with a gravity field! Make your own levels or play thousands of fanmade levels!
Modeled estimate, not a reported figure. How we estimate →
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About

Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
Engagement
Hours played at review time, across 22 reviews with recorded playtime.
Reviews
Its good for passing time. You know, to wait for that download to finish, or when you are just waiting for your woman to get ready.
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. The expanding world design constantly changes how players interact with familiar spaces. Areas that initially function as solutions later become obstacles. Structures that once provided momentum may eventually require different approaches after the environment grows larger. This evolving design philosophy keeps stages feeling dynamic rather than static. Instead of simply introducing completely separate levels repeatedly, circloO encourages players to revisit and reinterpret spaces they already understand. Movement mechanics remain intentionally limited, and that simplicity becomes one of the game's greatest advantages. Players primarily move left and right while physics handles momentum and environmental interaction. There is no traditional jump button available to bypass challenges directly. Progress depends entirely on understanding movement, gravity, slopes, and timing. Every obstacle becomes a test of how well players understand the rules governing motion inside the environment. This design creates a surprisingly satisfying learning process. Early stages introduce concepts gradually before combining them into more demanding situations later. Physics interactions expand naturally throughout progression. Environmental features such as moving platforms, unusual structures, gravity manipulation, and momentum-focused obstacles create variety without abandoning the game's core identity. New ideas consistently build upon earlier mechanics rather than replacing them. One of the strongest qualities of circloO comes from how effectively it balances challenge and accessibility. Puzzle platformers sometimes become frustrating when difficulty spikes appear too aggressively, but circloO maintains progression carefully. More demanding sections require patience and experimentation without feeling unfair. Mistakes rarely create major setbacks because retries happen quickly. This approach encourages players to continue experimenting rather than becoming discouraged. The physics systems deserve particular praise because movement consistently feels reliable. Success comes from improving understanding rather than fighting unpredictable mechanics. Small adjustments in positioning or timing often create dramatically different outcomes, reinforcing the feeling that mastery develops naturally through practice. Solving difficult sections feels rewarding because progress depends on learning rather than luck. Minimalism shapes more than gameplay alone. The visual presentation adopts clean colors and simple environmental design that keeps focus entirely on movement and puzzle solving. There is very little visual clutter competing for attention. Every platform and obstacle remains easy to understand, which becomes increasingly important as levels grow larger and more complicated. The restrained artistic approach strengthens gameplay clarity while giving the game a distinct identity. Audio design complements the overall experience effectively. The soundtrack maintains a calm atmosphere that supports concentration without becoming distracting. Combined with smooth pacing and quick restarts, the presentation creates an experience that feels relaxing even when challenges become difficult. circloO rarely creates stress. Instead, it encourages patience and experimentation. Replay value receives a major boost through additional challenge stages and player-created content. Beyond its main progression path, the game includes more difficult content designed for players seeking mastery beyond standard completion. The inclusion of community level support significantly extends longevity as well. User-created challenges expand the experience far beyond official content while encouraging creativity among players. The focused design philosophy naturally creates some limitations. Players looking for larger stories, character progression systems, or gameplay variety outside physics puzzles may find the experience intentionally narrow. circloO commits heavily to one core concept and refines it rather than constantly introducing entirely new mechanics. Its relatively shorter primary completion time may also leave some players wanting additional official stages. However, the quality of design largely compensates for scale. The experience remains memorable because every mechanic feels purposeful rather than excessive. Despite its minimalist structure, circloO delivers impressive depth through intelligent level construction and strong understanding of physics-based gameplay. Florian van Strien demonstrates how creative design can create compelling experiences without relying on complexity or spectacle. The game consistently builds on its ideas while maintaining accessibility and challenge in equal measure. For players who enjoy puzzle platformers, momentum-focused gameplay, precision movement, and games built around mastering elegant systems rather than overwhelming mechanics, circloO offers a rewarding experience filled with clever ideas and satisfying progression. Its simple appearance hides a remarkably thoughtful design that continues finding new ways to surprise players long after its opening moments. Rating: 7/10
Fun game but i would like comments on public levels and descriptions of the level and maybe public profiles
Such a good game! circloO is one of those games where such a simple mechanic is all it takes to make a great game. I love the game and highly recommend it!!!
originally, i started playing on the free version on mobile, and i liked the game, so i bought the steam version. this game is simple but pretty fun. i mostly play the game for the level editor due to how versatile it is, but i also enjoy playing custom levels. the updates are pretty often so it's a plus. overall i'd recommend this game, it's a pretty fun platformer with simplistic style.
[h1]A very well-executed platformer[/h1] I originally played this game on my phone, and it was an interesting experience. The main strength of the game is that it has a unique moveset I don't think I have ever seen anywhere. You are literally just a rolling circle. It's fun, it's simple, but it's also really complex. You can get a lot of speed by sliding down a steep slope or even just the level border and then proceed to bump into a little circle and get launched in the air (there is no jumping in the game apart from stuff like this). [h1] It has a level editor![/h1] Recent updates that added a level editor also added online level sharing, and I personally really enjoy a lot of the levels there. The level editor itself is pretty intuitive to use, apart from some parts, but it's really easy and fast to playtest, so you can figure it out without too much effort. [h1]Overall[/h1] An amazing platformer, definitely would recommend playing it, it's not too expensive as well and runs pretty well even on my bad laptop.
it good :CheerfulBonnibel:
balls
/ / 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 1533 1360.50 1533 1387.50 3 < 27 l_at 1545 1360.50 1545 1387.50 3 < 28 l_at 1557.50 1386 1544.50 1386 3 < 29 l_at 1557.50 1361 1544.50 1361 3 < 30 l_at 1557 1387.50 1557 1376.50 3 < 31 l_at 1523 1361.50 1529 1387.50 3 < 32
great game
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Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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