Ducklings.io is an .io game about collecting a following. You're a duck; you gather ducklings that trail behind you in a line, and the more you have the longer and more vulnerable your trail becomes. Cross another player's line of ducklings and you take them; let someone cross yours and you lose everything.
It's gentler than most .io games — nobody dies, they just lose their ducklings — which makes it one of the more relaxed entries in the genre.
Cross another player's trailing line. Their ducklings become loose and you can gather them, which is why a large flock is both an asset and a target.
Yes — you share the water with other players in real time, with no account needed.
Yes — a light browser .io game with nothing to install.