Steam app 2198800 · updated 12 Sep 2026, 20:22 UTC
Powerful Realtime 3D Electronic Circuit Simulator
343 hourly samples, with the daily peak drawn over them. Weekends are shaded.
47 months, November 2022 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 181 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 162 hourly samples. Each dip is a night. Weekends are shaded.
CRUMB Circuit Simulator was released on 18 Nov, 2022.
| Language | Full audio |
|---|---|
| English |
A blank audio cell means full audio was not marked in the returned language list.
32 developer announcements, Nov 2022 to Sep 2026 · times in UTC
I have been super busy posting on Facebook with new developments and features and have neglected to keep everyone up to date here! CRUMB 2.0 is shaping up nicely and has the potential to become the single most powerful and accessible…
mike.bushellGood evening ladies and gentlemen!I’m continuing to pour my life into this next version of CRUMB and I have a little something to share with you all! It is now possible to connect real hardware to CRUMB and interact with it, in this example…
mike.bushellJust another quick update everyone! So excited for this one.I always had a vision for the original CRUMB to run DOOM, but the Arduino I simulated was not the right component, nor was there enough simulation power/optimisation to even dream…
mike.bushellTime for another CRUMB 2.0 update boys and girls!! This time a much requested feature from the last few years, mechanical/physical components! Even better, you can back feed values into the simulator to accurately simulate loading and other…
mike.bushellNot just eye candy... An entirely new and revamped wiring system will make it easier to prototype and iterate quickly layouts and connections. Prototyping jumpers offers a fast way to create connections and adjust them on the fly. Wire…
mike.bushellGood early morning everyone! (GMT+1 😂) As always, smashing through development at all hours and have got a little something to show! The Arduino implementation in the current version of CRUMB is not up to standard. It was an architectural…
mike.bushellJust a quick little preview screenshot from the development build 🤩 I will post a major update soon regarding release for 2.0. But honestly, just look at that.... A proper Scope, showing trigger edges. A Multimeter with true to life options…
Patch notesProgram shaders from within CRUMBSome people may look at this update and ask the question "why do we need this?"... And the answer is very simple. One of the core concepts and non-negotiable features that CRUMB 2.0 needs to have, is for…
mike.bushellEDIT: I have re-written this post due to some interesting comments that it looked like it was written by AI. Strange time we live in, but hopefully this reads like a normal person now 😒 Good morning/afternoon/evening everyone!A massive…
mike.bushellGood morning/afternoon/evening to everyone! First of all, welcome to all the new users of CRUMB! And a big heartfelt thank you to everyone who has been with CRUMB since the beginning and patiently waiting for the next ground-breaking…
mike.bushellAfter the bold decision to leave Unity and switch to Godot for development, the next major iteration of CRUMB will benefit from fully native customisable docking windows and layouts. With the added benefit of built-in code editing…
mike.bushellHello everyone, Contrary to some of the recent reviews saying the project is dead, it is not... I just happen to be working on this in my absolute spare time between work, family and living! I have had a few comments, discussions and…
mike.bushellFixed memory leak from the C++ MatrixMath.dll when running large complex circuits. As users are starting to build larger, the solving logic runs through a few more steps to converge and one of the steps had an overlooked leak. CRUMB 2.0…
Patch notesSlight change to the convergence code of the Diode Element as there were some unique circuit configurations unable to solve, causing a memory leak as the Math Engine tries to compensate
Patch notesMore fixes! 74HC245 fixed issue with the DIR pin not functioning correctly and causing a crash due to matrix error Corrected pin labels for 74HC245 and 74HC273 Fix issue with a single remaining pin label after a component delete with pin…
Patch notesI have removed support for AVX2 for the time being as it would appear that some users do not have support from their CPUs. The performance loss is negligible, if any, and should stop crashing for affected users! As always, please get in…
Patch notesIn the last 24 hours since 1.3 was released, a couple of errors have been noted. I have worked hard with several users to isolate the problems. I honestly cannot thank them enough for their patience. I have updated a few key areas, which…
Patch notesBetter late than never... Simulation speed was always the limiting factor for the future of CRUMB. No matter how much work I put into other areas, I was always hit with the same issue and I was not able to achieve the vision that I wanted…
mike.bushellHello everyone, just a quick update on progress! I am for the most part complete with the speed update, it is actually now possible to run some of the circuits at 96,000Hz which is great news... especially if you want to create circuits for…
Patch notesWork on the first major update is going well, although I am up until 2-3am most nights working away hard! Speed is the major update to begin with, it has got to the point now that it is actually immeasurable just how fast I have managed to…
mike.bushellSome of you will have already seen in the discussions that I have been made a major breakthrough in the development of CRUMB. Since before I even released CRUMB nearly 2 years ago, I have been constantly searching for more performance and…
mike.bushellJust a quick update to show that I am pouring long hours in to making CRUMB Advanced as detailed and complex as possible 😄. Further developments include: Dockable Panels and Windows Hierarchy Browser Transform Tools Material Editor + much…
mike.bushellThe core concept of CRUMB 2.0 is to be able to give the user the ability to create any component, mechanical or electrical. The starting point is the importing of a 3D representation of that component. Switching to the Unity UIToolkit, I…
mike.bushellJust want to share a quick screenshot from the development build of CRUMB 2.0 showing the new Component Editor! You can import a variety of 3D model formats, define pins, tie points, all programmed functions etc... It is really going to be…
mike.bushellHey everyone! Long time since the last update, but I have still been working away hard between my real job and young family! I have been gathering lots of info from all the users and my whiteboard is now covered in ideas and feature…
Patch notesWhilst I am taking a small break from development after the big update, I thought it would be nice to sit down with CRUMB and have a play around! I started development just over a year ago after I discovered some of the videos made by Ben…
mike.bushellFinally the Update is here! Thank you to everyone who has been patient whilst I have been working long days and nights to re-write the vast majority of the Core UI code. CRUMB may not look too different, but underneath what you can see, it…
mike.bushellHey everyone! Another update for you all to show I'm still hard at work and I haven't abandoned anyone who has had problems with V1.0! The new update already has lots of features added already. Most of the work is being done to rectify this…
mike.bushellQuite a few users, especially those whose number systems use a different format to GB English, have been suffering breaking crashes and it has forced me to rebuild the user interface from scratch... however, a kind user on the CRUMB forum…
Patch notesHello everyone! I want to keep you updated as much as I can so that you can see what I am working on 😁 Firstly, I have completely restructured the UI and this will remove all of the issues that some users have been having with crashes and…
mike.bushellThank you all so much for your patience! It seems that yesterdays fixes haven’t resolved the issues for everyone, so I am now completely restructuring my UI system It should take me around about 2 weeks to complete, but it will also mean…
Patch notesHello everyone! Mike here... the solo developer behind this project! Thank you to every one who has downloaded CRUMB, and I appreciate your patience with a few issues that have become apparent. I have quickly put together a quick patch to…
Patch notesWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | CRUMB.exe | windows | ||
| Launch | CRUMB.app | macos |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG