MHRD is a hardware design game, in which you design various hardware circuits in a hardware description language. The hardware circuits you design get more complex as you go until you create a fully functional CPU design.
User reviews:
Very Positive (18 reviews) - 94% of the 18 user reviews in the last 30 days are positive.
Very Positive (98 reviews) - 92% of the 98 user reviews for this game are positive.
Release Date: Jan 5, 2017

Sign in to add this item to your wishlist, follow it, or mark it as not interested



Recent updates View all (2)

January 18

Introducing Steam Trading Cards, NAND-Count and Leaderboards integration!

After having introduced achievements recently, the game now features trading cards. Furthermore the game keeps track of the efficiency of your designs by telling you your design's overall NAND-Count and by showing you how you compare to the rest of the world via leaderboards integration. If you messed up, you can now revisit your solutions and optimize them.

- Trading Cards integration
- For every part you build the game will tell you it's total NAND count (including all the NANDs used by it's parts). Changing the design of a simple gate (like an MUX element) will influence all elements using that element as a part (e.g. RAM, ALU, CPU, etc.)
- After finishing a design, it will have a "Finished Design" and "Working Design" section, once it is in the "Completed" folder. The "Finished Design" shows you your solution for your best and most recent design implementation. The "Working Design" tab gives you the possibility to have another shot at doing the design and eventually improving it (may it be syntactically or nand-count wise)
- Steam Leaderboard integration: You can see how well your design is compared to your friends design and the worlds best design
- Loading an old savestate, should immediately give you stats for all your designs without the need of redoing them
- A lot of other minor bugs have been fixed as well

2 comments Read more

January 11

Update available - Achievements added!

Thank you all for reporting all the typos and bugs you found! By now most of them should be fixed and a new update for the game is out, introducing achievements:

- Achievements added
- Fixed auto-complete bug under Mac OS
- Corrected many typos and did some slight changes to the specifications and manual (no impact on the actual designs though)
- Improved error messages for the verification process

Please be aware that some of the changes (incl. achievements) won't be accessable with old savestates for now.

0 comments Read more

About This Game

Welcome to Microhard
- Become a hardware engineer
- Join the hardware startup Microhard
- Immerse yourself in the technology of the 80's
- Disrupt the tech industry

Build your own CPU
- Design hardware circuits with the integrated hardware development environment
- Write your designs in the MHRD hardware design language
- Create hardware designs based on more than 20 specifications (e.g. multiplexer, adder, ALU, RAM, etc.)
- Simulate and verify your designs
- Read the included manual to get started on your career as a hardware engineer
- Reuse completed hardware designs to build more complex ones
- Design a fully functional CPU and get your mind blown!

System Requirements

Mac OS X
SteamOS + Linux
    • OS: Windows Vista / 7 / 8 / 10
    • Processor: x86 (64-bit)
    • Memory: 1024 MB RAM
    • Graphics: Integrated Graphics
    • Storage: 150 MB available space
    • OS: Mac OS X 10.9 or later
    • Processor: Intel
    • Memory: 1024 MB RAM
    • Graphics: Integrated Graphics
    • Storage: 150 MB available space
    • OS: Ubuntu 10.04+
    • Processor: x86 (64-bit)
    • Memory: 1024 MB RAM
    • Graphics: Integrated Graphics
    • Storage: 150 MB available space
Customer reviews Learn More
Very Positive (18 reviews)
Very Positive (98 reviews)
Review Type

Purchase Type


Display As:

(what is this?)
71 reviews match the filters above ( Very Positive)
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...