CasikoLamp

A logic puzzle set over a neon city at night. Each puzzle is a sign to switch on: place bulbs so every empty square is lit, no two bulbs shine on each other, and every number on a wall matches the bulbs touching it. Every puzzle has exactly one solution. The fuse box below has a breaker for each part of the game. 1A · City map 36 signs in six districts, from Harbour Lane through Market Row, Cinema Square, Tram Depot and Tower Heights to Skyline Crown. Boards grow from 7×7 to 12×12, joined on the map by a glowing neon wire. 2A · Stars and par Every sign has a par time. Beat it without hints for three stars, and your quickest time is saved. The next sign opens when the current one is lit. 3A · Sprint Five minutes on the clock and a run of 7×7 signs. Solve as many as you can, then check your record and the last 20 sprints. 4A · Tools Undo, Hint, Clear and a Dot pen. Tap to cycle bulb, dot and empty, or hold to mark a dot. Clashes glow red, finished numbers turn mint, and a neon tube fills as the board lights up. 5A · Records Stars, signs, puzzles solved, bulbs placed, hints used, time spent and the sprint record, plus 10 badges such as First Switch and Clean Wiring. 6A · Quiz Ten questions per round from 24 real facts on the history of electric lighting, from Davy and Swan to sodium street lamps and blue LEDs, with four answers each. 7A · Background Twinkling windows, stars and river reflections move behind the menus. Switch Background animation off in Setup, where haptics, the rules and a progress reset also live. Main switch No sound, just haptics. The game plays offline with no account needed.