Background

CirclO was created by independent developer Florian van Strien around a single, elegant idea: what if a platformer's world was made entirely of circles, with gravity always pulling you toward the nearest circle's surface? That premise turns ordinary platforming logic on its head — there's no fixed "down," just whichever circle you're currently standing on, which completely changes how you have to think about jumps, momentum, and navigation.

It's a great example of a game built from one strong mechanical idea taken to its full logical conclusion, with level design that keeps finding new, surprising ways to use the curved-gravity concept as you progress.

How to Play

• Arrow Keys / WASD — move and jump; gravity always pulls toward the nearest circle's surface.
• Navigate between circles, using momentum and jump timing to transition from one curved surface to another.
• Solve each level's layout, since the same controls behave very differently depending on which circle you're on.
• Reach each level's goal to progress to a new, more complex circular layout.

Goal & Purpose

Each level is a small puzzle built around the curved-gravity mechanic — the goal is always to reach the exit, but figuring out how movement and jumping actually behave on a given arrangement of circles is the real challenge.

Tips for New Players

• Take a moment to observe how gravity is currently oriented before attempting a jump — it's rarely intuitive at first.
• Momentum can carry you between circles in ways that look impossible until you try them — don't be afraid to experiment.
• If a section seems unsolvable, you're often missing an alternate circle to jump toward rather than needing a harder jump.

Why Play CirclO

It's one of the most genuinely inventive small-scale puzzle platformers you'll find in a browser, built entirely around a mechanic you won't find almost anywhere else. If you like clever spatial puzzles, GBK Games also has Bloxorz for another mechanically inventive puzzle experience.