Dotliner

Dotliner is the classic pen-and-paper game of dots and boxes, brought to life with clean lines and clever play. Players take turns drawing a single edge between two dots; complete the fourth side of a little square and you claim it — and take another turn. The grid fills quietly at first, then erupts into long chains where one clever sacrifice can hand you half the board, so what feels like a children's game hides a surprisingly sharp strategy of chains and double-crosses. Play against a real computer opponent across several difficulty levels, from a casual beginner to a tougher mind that understands chain parity and the double-cross trick, or pass the phone for a two-player hot-seat duel. Claimed boxes fill with your colour and your initial, completed edges glow, and a running score keeps the race readable right to the last square. There's an undo while you're learning, an optional hint that flags a safe move or a smart sacrifice, and a tidy end screen that tallies the final boxes. Choose from a few grid sizes to make each game shorter or longer. Wrapped in a big animated title, a bright two-player palette and buttons styled just for it, Dotliner runs completely offline with no account and no ads. Whether you want a quick skirmish or a long, chain-building battle of wits against the AI or a friend across the table, it turns a grid of dots into an endlessly re-playable classic.