Fill Line

There's something quietly absorbing about Fill Line — the kind of puzzle that looks almost too simple at first glance, then suddenly has you rethinking every move. The grid sits there, patient, waiting for you to find the one path that covers everything without doubling back.

The satisfaction comes not from speed but from that moment a clean solution clicks into place. No wasted squares, no dead ends. Just a complete, unbroken line threading through the whole board exactly as it should.

Difficulty creeps up gradually, and the later puzzles demand a different kind of thinking — working backwards, holding multiple paths in your head at once, second-guessing what seemed obvious. It's the sort of game that's easy to pick up during a spare five minutes and surprisingly hard to put down once the puzzles start getting genuinely tricky.