Linko

Strip Pairs of matching coloured terminals sit on a square grid. Join each pair with a single line, keep the wires from crossing, and leave no cell empty at the end. Every layout is built from one path through the whole grid, so a full solution always exists. Connect Drag from a terminal or from any part of a line you have already laid. Pull back to shorten it, and drag across another colour to cut that one short. Undo, Reset and Hint sit under the grid, and three counters track pairs linked, cells filled and strokes used. Route Sixty levels come in five packs of twelve: Breadboard 5×5, Junction 6×6, Relay 7×7, Switchyard 8×8 and Mainframe 9×9, with four to nine wires each. Three stars mark a clean run with no hints and barely more strokes than wires, and clearing eight levels in a pack opens the next. Zen serves endless 6×6 and 7×7 layouts and counts how many you link in a row, while the Daily mode offers one 8×8 grid per date with a chart of the last seven days. Test Circuit check asks ten questions a round from 25 real facts about electricity, from Ohm’s law through the first transistor. Eleven badges mark your progress, and the Log lists every run with totals for boards, strokes, hints, stars, your Zen record and your quiz score. Haptics, A to I and 1 to 9 coordinates and the moving scan line can be changed in Settings, and the game plays offline, with no ads and no account.