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About this game
Logic Gates is a spatial circuit puzzle, not a step-by-step programming game. Levers and bulbs sit along the edges of a snap grid, and your task is to build the smallest combinational circuit that satisfies a target truth table. Pick NOT, AND, OR and XOR gates from the palette, tap a source pin then a target pin to draw a wire, and flip any lever to watch the signal propagate live across every gate. Twenty four levels run through four chapters: single gate intuition, combining gates with XOR and the half adder, three inputs with multi output circuits, then master optimization where chapter four unlocks the NAND gate and whole circuits shrink by a chip at a stroke. Stars use a double metric proven at build time by an exhaustive circuit solver, so the three star gate count is the exact minimum, two stars allow one gate of slack, and clearing simply means all eight input combinations match. The workshop mode adds a free canvas with five saved circuits on your device, a twelve entry challenge sheet with published par gate counts and badge achievements, and the daily tab seeds one fresh three input circuit every UTC day. Your best stars and score are saved locally.
How to play
Pick a gate from the palette, then tap a cell to place it. Tap a lever and then a gate pin to draw a wire, and finish the chain from the gate output into the bulb. Flip the levers to preview the live outputs, then press Test to pulse every input combination. All rows must match, and fewer gates earn more stars.
Tips & Tricks
- Watch the gate chip in the header, the number is your budget and the par is the exact minimum proven by the build solver.
- Every one of the eight input combinations is checked, not just the row you are looking at, so rehearse the rare corners before you press Test.
- When the NAND gate unlocks in chapter four, a single chip often replaces an AND plus a NOT.
- Workshop challenges publish a par gate count, so clear the circuit first and then shave gates down to the par.
Frequently asked questions
How are the gate count targets decided?
Every campaign level has its minimum gate count computed at build time by an exhaustive circuit solver that only uses the gates the level unlocks, so three stars is a proven optimum rather than a guess. NAND enters the available set in the final chapter.
What can I do after the 24 levels?
The workshop mode is a free canvas with five saved circuits on your device, a twelve entry challenge sheet with badge achievements, and the daily tab generates one fresh seeded circuit every UTC day.
