Casa Aplos

A logic puzzle drawn in neon over a harbor at night. Join the dots into one closed line with no branches and no crossings, guided by the numbers in the squares.
Dusk
Each number tells you how many of the four sides of its square belong to the line. Tap between two dots to place a segment, tap again for a cross, or drag across the dots to draw a whole run at once. Numbers dim when they are satisfied and turn red when overdrawn, and every puzzle has exactly one solution.
Midnight
Twenty-four levels sit in four sets of six: Harbor Lights on a 5 × 5 board, Arcade Row at 6 × 6, Night Market at 7 × 7 and Skyline at 8 × 8, with fewer clues the further you go. Three stars mean no hints, two allow one. Undo and Clear are always at hand, and Hint first removes a wrong segment, then reveals a correct one.
Small hours
Night Rush gives you three minutes to close as many small 4 × 4 and 5 × 5 puzzles as you can. Your record is kept, and every run goes into the history list alongside your levels.
Dawn
Stars light up six neon tube colors for your line, from Harbor Cyan and Arcade Pink to Violet Hour and Moon Ice. The After Dark quiz asks eight questions from 24 facts about neon light, maths and night skies. Stats show stars, levels, circuits closed, segments drawn, your Rush record and quiz score.
Stars twinkle, city windows blink and reflections drift across the water behind the board; this animated background can be switched off in Settings, together with haptics. The game plays offline and needs no account.