I've thrown some hours into this so I'll put in a review for it. It's good fun if you're looking for a digital circuit/logic simulator to design things in. Performance has improved enough that computers can be made now, I've spent enough time to make a couple myself. Check in the community tab for Ben Eater's 8-bit computer build and my own design. Components may be limited, but I just see that as a fun challenge. Overall I recommend it.
CRUMB Circuit Simulator
- Release Date:
- Nov 18, 2022
- Developer:
- Mike Bushell
- Publisher:
- Mike Bushell
- Platforms:
- Windows
Game Tags
About This Game

Interactive and immersive learning
CRUMB offers an easy to use and interactive introduction to electronic circuitry. Fully realised in 3D, you can construct prototype circuits as you would at the workbench without the risk of terminal component failure or the hassle of ordering individual components. A broad selection of parts and features offers an insight into many different areas of modern electronics
Large catalogue of components
CRUMB has a varied selection of components, even at this early stage in its development. There are no limits to what circuits you can create. CRUMB includes several built-in examples which showcase some of the abilities of CRUMB. This list below highlights some of the included components- Passives such as Resistors, Capacitors and Inductors
- Tactile, slide and DIP switches
- Semiconductors such as Diodes, BJT Transistors, MOSFETs and Silicon Controlled Rectifiers
- LEDS, Transducers, Seven Segment displays
- LCD and TFT displays
- DC Power and Signal Generators
- Large selection of Integrated Circuits ranging from Basic to Complex Logic, Timers, Counters, Memory, EEPROM and Op Amps
- Fully programmable Microcontroller
Advanced features
The latest update has expanded some of the special features included with CRUMBCode Editor
The built-in Code Editor has been expanded to allow the viewing and editing of the Source Files that I have written for the programmable Microcontroller included in CRUMB

Hex Editor
This is an EEPROM available to use which can be programmed via circuitry (see built-in example) or values can be entered manually with the built-in hex editor

Scope Analysis
Up to 4 components can be added to the built-in scope, allowing you to view the intricacies of your circuit

Visualisation
CRUMB offers a set of different visualisations tools. You can view current and voltages in the wires, logic output at the pins of various components, highlight the pin labels and anodes of polarized components and switch off the scene lighting for dark mode
Screenshots
User Reviews
I got this a while ago to use while I began reading through a "Learn Electronics" book. So far it has been a HUGE help for me with learning circuits, breadboards, implementing Ohms law, etc... It has translated directly to little projects IRL, like replacing Bulbs with LEDs and Resistors in Retro Electronics from the 70s. Anyway... I Love it. Would love to see more components as seen from our Beginner Guide Books.
There are depressingly few components, and the pace of development is glacial. The last significant update was about nine months ago and the next one doesn't seem like it'll arrive any time soon... Meanwhile, it hardly seems finished despite being released.
YEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEES
Runs really well and its way more convenient to do it digitally than in real life. Only issue i had so far was a pot needing to be deleted and replaced to work right.
For the price i expected more components and functionality.
Very useful piece of software for people who would want simulations of circuits for hobbyist purposes or to aid with their studies in electronics.
System Requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 8
- Processor: Intel Core i3
- Memory: 4 GB RAM
- Graphics: Integrated
- Storage: 1 GB available space
Recommended
- Requires a 64-bit processor and operating system
FAQ
How much does CRUMB Circuit Simulator cost?
CRUMB Circuit Simulator costs $8.99.
What are the system requirements for CRUMB Circuit Simulator?
Minimum: Minimum: Requires a 64-bit processor and operating system OS *: Windows 8 Processor: Intel Core i3 Memory: 4 GB RAM Graphics: Integrated Storage: 1 GB available space Recommended: Recommended: Requires a 64-bit processor and operating system
What platforms is CRUMB Circuit Simulator available on?
CRUMB Circuit Simulator is available on Windows PC.
Is CRUMB Circuit Simulator worth buying?
CRUMB Circuit Simulator has 70% positive reviews from 10 players.
When was CRUMB Circuit Simulator released?
CRUMB Circuit Simulator was released on Nov 18, 2022.
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