
Powerful Realtime 3D Electronic Circuit Simulator
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.71/day in the week to Sep 11 → 4.17/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About






Engagement
Reviews
Themes across 93 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Unfortunately it only supports simulation for the Arduino Nana. Hopefully more boards can be made available in the future.
This has been an excellent and clean tool to quickly test designs on a breadboard before actually committing to a prototype on the breadboard itself. I'm keeping my fingers crossed that more features will eventually be included, such as: an osilloscope, motors, servos, actuators, ESP32, and so on... I'd also like to see hotkeys to quickly jump between parts, wires, and colours. Otherwise, Crumb is on the right track to be a fun and useful tool for beginners and experts alike.
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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
Hours played at review time, across 93 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Bottom line is It has too many issues to keep it from being a useful tool. If you are new to electronics you may have some fun but if you already know what you are doing you will quickly run into it's many issues, bugs and limitations. For example I have many working Arduino projects but I could not get a single one to actually compile on the one Arduino microcontroller included. And the info you get from the compiler when it fails is next to useless for trying to debug what the issues may be. I had one file with about a dozen constants defined. It was fine with most of them but complained that two of them were undefined variables. Again, this is proven code that compiles in the Arduino IDE or Visual Studio. So this compiler is the issue not the code. Lots of other bugs that came up. Like opening a new file only to have a component from the last file stuck on the screen with no way to select and delete it. I've had that Arduino MCU just disappear from a design when opening file. Maybe because it didn't have a compiled file uploaded to it? Who knows? Think of it more like an emulator then simulator. And like many emulators it's behavior is not always consistent with the thing it's emulating. As someone who knows electronics I can't recommend it. If you know what you are doing you'll quickly find the issues and limitations and if you don't know what you are doing those issues could inhibit progress in learning electronics and there are better tools already for both ends of that spectrum.
This thing is worthless. You can do this for free in Wokwi, and you get more boards to play with. I dont even use Arduino, that is how outdated that crap is. The world has moved on to Pico and ESP32 and many many others. Arduino sucks and so does this sim.
I have spent around 300 hours so far in CRUMB and enjoy it very much. I love being able to build and test circuits without having to worry about buying new components and bread boards. The graphics are top notch, and the electronics closely mimics real life (with some exceptions). The author is currently working on a new version with many improvements. He's says that current users will get the update free. I'm waiting with baited breath for the update.
Really good simulation software for 8.99 USD in comparison to other simulation products that are insanely expensive. There's also an android version of this simulator. Of course with those other simulation products there are more features but this is just one guy doing it for the love of the game and it makes learning electronics more accessible to people who do not want to spend 100+ dollars on simulation software just to learn the basics and how to use common components. With this software you can easily follow youtube tutorials and gain knowledge without having to spend money on components, equipment such as multimeters, an oscilloscope and DC/AC power supplies. The cost of equipment, tools, components and breadboards all together add up while this is just 8.99 USD, without the risk of blowing the cap off a capacitor, burning an IC, being electrocuted etc. If you're more experienced and consider yourself more of a professional, this software still has its uses and those uses will only expand once the new update is out based on what the announcements demonstrate. Just don't expect this to be like a 900 dollar simulation software (NI Multisim etc)
Great for doing a LED, buzzer or basic IC, but it needs at least a handful of the common or basic sensors and outputs. I'd gladly pay a couple bucks for that as DLC to make this a better simulator!
Horrible, don't waste your money on this one. It's a neat way to build circuits i give you that. But simulation wise? it will just not work AT ALL....i mean i connected the led between + and minus with 220ohm resistor in between, result? it did not light up at all, tried multiple types of proven circuits, none of them worked. it's a lego builder without the promised simulation. at this point this is just a scam.
Couple components not working, all we get is some dev diary but the other things are fine. Also I CAN'T TYPE THE HZ THAT I WANT, WHO THE ♥♥♥♥ IS USING THAT SLIDER TO ADJUST SOMETHING ? as an engineer, I can say it's not that bad
К сожалению на данный момент в программе отсутствует даже базовый функционал симулятора. Контроль времени отсутствует, что не позволяет отлаживать схемы если они работают быстрее реального времени. Интерфейс сырой, осциллограф баганый, настройка развёртки так же отсуствует. Вообще в принципе настроек у осцилографа нет. Генератор и источник питания сложно настраивать, нет возможности ввода конкретных значений. Нет возможности отображения схемы, короче просто нет ничего :c Хотелось бы побольше базового функционала перед библиотекой компонентов. Зачем мне симуляция Arduino, когда я не могу отлаживать процессы происходящие в схеме на скорости МК? В общем грустно, разочаровывающе :c
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Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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