Countdown Cavern is a free arcade browser game by Osamh Alsharekh. Play it on desktop, with no download.
Ten seconds. Then the floor becomes the ceiling.
Countdown Cavern runs on a clock you cannot pause. Every ten seconds gravity inverts — you fall upward, the ceiling becomes ground, and ten seconds later it all turns over again. The countdown doesn't stop for menus, for mistakes, or for you.
One thing never changes
Left is always left. Right is always right. Jump always pushes away from whatever floor you're standing on.
The world turns over; your controls never do. Everything else down here is negotiable.
The flip is a tool, not a hazard
A wall four tiles high is unjumpable — deliberately. That's not a dead end, it's an instruction: wait, flip, and walk over it upside down.
Every good room asks the same question the moment you enter it. Do I have time to cross before it flips, or do I stand still and let it carry me? Patience is a mechanic here. So is nerve.
- Devices
- Desktop browser
- Input
- Keyboard & Mouse, Arrow Keys / WASD
- Released
- August 2026
- Latest update
- August 2026
Set Aug 19, 2026. Held 63 days.
Your run
Playing as a guest, your scores aren't saved. Log in to claim your spot on the leaderboard.
How it scores
Score points and climb the leaderboard. Your best run counts.
Media
See it in motion
Creators wanted
Creator campaigns
No live campaigns for Countdown Cavern yet. Like the game and check back, new campaigns land here first.
Countdown Cavern on the marketplace: studio, store links, and campaigns
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