Breadboard: Circuit Puzzles
Real circuits, real physics — every puzzle runs on a genuine circuit simulator.
Contact & support
Questions, bug reports, or feedback? Email us and we'll get back to you:
Please include your device model and iOS version for bug reports — it helps a lot.
Frequently asked
My LED burned out — is that a bug?
No — that's the game. Every circuit is really simulated: too much current
really does destroy parts, exactly like on a physical bench. Tap Reset and
add a current-limiting resistor. The in-game Handbook (brass book button)
has every component's ratings and the formulas to pick the right values.
I'm stuck on a level.
Tap the wand ("Solve it for me") — the tutor builds the solution one part
at a time and explains each step with real numbers.
Does the game need an internet connection?
No. The whole game works offline, including in airplane mode.
Is my progress synced or uploaded anywhere?
No. Progress is stored only on your device. See the
privacy policy.