Voltine: Circuit logic puzzle

"Wait — what if I turn this one here?" You place your finger, and the bulb flicks on. Such a small thing, yet somehow it feels great. Voltine is a circuit puzzle built from a thousand of those little "got it!" moments.

It plays simply: tap a wire to rotate it and build a path for the current, from the power source all the way to the bulb. The first stages are a single, gentle line. Once that clicks, branches and switches appear — and then the logic gates.

NOT flips the signal that reaches it. AND only lets current through when both inputs are on. OR needs just one. XOR passes only when exactly one side is on. It sounds tricky written down, but each idea arrives with a short, wordless animation that shows you how it behaves — so you pick it up just by watching, in any language, without reading a tutorial.

You trace the current in your head, combine gates and switches, and feel the pieces click into place. The harder the board, the bigger the "ohhh, THAT'S how" when it finally lights up. Later stages bring true logic puzzles — the kind you can't brute-force, only reason your way through.

1,000 stages, from an easy first step to genuinely brain-bending puzzles, with the challenge rising slowly
Wire rotation, branches, switches, logic gates (NOT, OR, AND, XOR) and colored circuits running side by side
Every new mechanic is introduced with a wordless animation — no tutorial text to read
Stages unlock in order. "Just one more" quietly turns into ten
Stuck? A hint can quietly reveal the next correct move
No timers, no pressure. On the train, before bed, or in a spare minute — connect the circuit and light it up at your own pace.

Wire it up. Light it up. Voltine.

Recent changes:
first version