Gatecraft

On a wiring workbench you place gates, connect their ports, and aim to make the output reproduce a target truth table. The campaign walks a tech tree: build NOT from NAND, then AND, OR and XOR from the gates you have unlocked, before a final free-form target level.

• Place an unlocked gate from the Parts panel onto the board
• Click an output port, then an input port, to draw a wire (no loops allowed)
• Verify to check your truth table row by row; unlock each gate to add it to your parts

• Desktop: click Parts to place gates, click port-to-port to wire, right-click a gate to delete it, then press Verify
• Phone & tablet: a mouse is recommended, wiring and right-click delete are easiest with a pointer

• Daily: a shared final-level truth table seeded from today's date
• Practice: a fresh randomized final target each run

• Feed one signal into both inputs of a NAND to make a NOT
• Build XOR by combining the AND, OR and NOT chips you already unlocked rather than starting from raw NANDs

Gatecraft teaches functional completeness, how every logic gate can be built from NAND alone, a deep idea made playable.

• Skills: logic gates, Boolean logic, functional completeness, digital design
• Best for: roughly grades 9–12 (ages 14+)
• For parents & teachers: how all logic builds from one gate.

Placing gates, wiring their ports and making the output reproduce a target truth table is the foundation of digital electronics, and rests on Boolean algebra — George Boole's nineteenth-century logic of true and false, which turned out to describe circuits.

Working up a tech tree from simple gates to larger components mirrors how the field itself is taught and built.

The truth table is the reason this is possible at all. It specifies behaviour completely without saying anything about implementation, so the same target can be met by several circuits — and comparing them is where the idea of efficiency enters.

Gatecraft teaches functional completeness, how every logic gate can be derived from NAND alone. It is an original, free browser puzzle built in-house for PlayPendium.

A free, original browser game on PlayPendium. No download, no install.