Ring on Tube

Sliding a ring along a tube sounds straightforward — Ring on Tube makes sure it isn't. The tube is scattered with pieces that need collecting, and the only way to reach them all is by resizing your ring at exactly the right moments. Too big, too small, and you miss your chance.

Resizing happens with a click or a tap, which keeps things immediate. The challenge builds quietly at first, then starts demanding real attention as obstacles multiply and the gaps between them tighten. Over a hundred levels means the puzzle stays fresh longer than expected.

Scoring rewards both thoroughness and speed, so there's always a reason to replay a level and do better. The satisfaction comes from finding the right rhythm — knowing when to shrink, when to expand, and when to just hold steady and push through.