Flippy the Train vs ThinkWire

Build a train track to solve digital circuitry puzzles! Flippy the Train rides the rails, flipping switches to model basic digital circuitry: NOT, AND, and OR logic gates. After building these basics, reuse them in larger tracks to create the more-complex XOR gate and half-adder. What is the fewest number of track segments required to build a half-adder? Includes a sandbox mode for creating arbitrary track for Flippy to ride.

Connect the signal. Understand the circuit. Find the elegant solution. ThinkWire is a calm logic puzzle game about guiding signals through visual circuits. Begin with a simple source and target, then master relays, splitters, switches, blockers, and AND, OR, and NOT gates as each puzzle adds a new idea. MADE FOR THOUGHTFUL PLAY • 50 free puzzles with a smooth difficulty curve • Nine node types that combine into deeper logic challenges • Connect by dragging or tapping—play the way that suits you • Clear first-level guidance, hints, and animated signal feedback • One-to-three-star goals reward efficient solutions • No timer and no account required • Core puzzles work offline; ads and consent need a connection ARABIC AND ENGLISH Choose Arabic or English on first launch. ThinkWire includes a carefully localized Arabic interface with right-to-left navigation and readable Arabic numerals. ACCESSIBLE BY DESIGN VoiceOver actions, Dynamic Type, high-contrast visuals, reduced-motion support, haptics, and clear non-drag controls help more players solve comfortably. 50 MORE EXPERT PUZZLES Level Pack 2 is a one-time purchase that unlocks 50 additional expert, master, and ultimate puzzles and removes ads. Think carefully. Wire precisely. Solve elegantly.