Build the computer. Wire by wire. Gate by gate.
The City of Volt has gone dark, and you are the youngest engineer left. Relight it — and along the way, discover how computers really think.
⬇ Download for Mac free · 65 MB · Apple Silicon & Intel ⬇ Download for Windows free · 106 MB · 64-bit 💛 Tip pay what you wantWires, NOT and OR — then you invent AND and XOR yourself, the way engineers did. Every gate you place truly computes.
Learn binary, then build half adders, full adders, and a working 2-bit adder with ripple carry.
Encoders, decoders, and a wall of lamps: build a display driver that draws glowing 7-segment digits.
BitTick flip-flops and your own working RAM — press a button, let go, and the machine remembers.
World ∞ is a saved sandbox with unlimited parts, letter blocks you can rename, undo, and WorldEdit-style copy/paste.
Add-only mod system: new levels, worlds and function packs from anyone — the base game stays untouchable. A built-in "Make a mod" kit included.
Restyle wires, gates, lamps, levers and the floor with your own colors or pixel-art PNGs — Minecraft-style. "Make a pack" hands you a green-wire starter pack to edit.
Boolean Quest is free, and it always will be. If it lit something up for you — a puzzle solved, a first circuit, an "OHHH I get binary now!" — you can toss a coin to the engineer. Every tip powers the next world. ⚡
💛 Leave a tip pay what you want · totally optional