Electromagnet Field Puzzle is a physics-based logic game about routing magnetic field lines. Each level shows a grid with electromagnets (marked N for North, S for South), iron blocks, and green target zones. Field lines emanate from each magnet in real time — North magnets emit blue lines, South magnets emit pink lines. Your goal is to flip the polarity of magnets (N↔S) so that every magnetic field line passes through at least one green target zone. Click or tap any magnet to flip its polarity; the field lines update instantly. When you think all targets are covered, press the Check button. If every target is intersected by a field line, you win the level.
Field lines always flow from North to South — so the arrangement of N and S magnets determines where lines travel. Iron blocks don't block field lines but they influence the grid layout, so factor them into your path planning. Start by identifying which targets are currently uncovered, then flip the nearest magnet to redirect a line through them. A single flip can reroute many lines at once, so check the whole field after each change — don't just focus on one target. Use Undo to revert flips, and Reset to start the level fresh. The level's "par" flip count determines your star rating.
Yes! Electromagnet Field Puzzle is completely free to play in your browser — no download or sign-up needed.
Yes — tap any magnet to flip its polarity. Fully touch-optimized for phones and tablets.
30 handcrafted levels across 6 tiers, from basic field routing to complex multi-magnet puzzles with iron obstacles. Par flip counts range from 2 to 12.
Flip magnets so that every green target zone is intersected by at least one magnetic field line, then press the Check button. The game traces all field lines and verifies coverage automatically.