Show HN: I made a game where you build a CPU from logic gates

#1

Post by laurentiurad » Thu, Jul 30, 2026, 11:33 AM UTC

I built ChipBuilder to make computer architecture more approachable through interactive puzzles.

You start with basic logic gates like AND, OR, and NOT, then gradually combine them into adders, multiplexers, memory, an ALU, and eventually a complete CPU. Once you've built the hardware, you can write assembly programs that run on the processor you created.

The game is inspired by courses like Nand2Tetris, but everything runs directly in the browser with a visual circuit editor, simulations, and progressively harder challenges.

Show HN: I made a game where you build a CPU from logic gates
select.supply

Re: Show HN: I made a game where you build a CPU from logic gates

#2

Post by [deleted] » Thu, Jul 30, 2026, 11:33 AM UTC

[deleted]

Re: Show HN: I made a game where you build a CPU from logic gates

#3

Post by shadab_khan_127 » Thu, Jul 30, 2026, 11:39 AM UTC

I like it, it's fun Why you decided to keep wire button on top ? can't we do something like clicking on the dot will trigger wireing

Re: Show HN: I made a game where you build a CPU from logic gates

#4

Post by laurentiurad » Thu, Jul 30, 2026, 12:47 PM UTC

shadab_khan_127 wrote: post #3

I like it, it's fun Why you decided to keep wire button on top ? can't we do something like clicking on the dot will trigger wireing

A good point. I will change it!

Re: Show HN: I made a game where you build a CPU from logic gates

#5

Post by azatom » Thu, Jul 30, 2026, 1:20 PM UTC

you maybe not select accidental but others do:

user-select: none;

Re: Show HN: I made a game where you build a CPU from logic gates

#6

Post by sebastiansm7 » Thu, Jul 30, 2026, 1:24 PM UTC

I wasn't able to wire the inputs to the gate, so my career at ChipCorp ended at level 1.

Also it would ne nice to have a level zero where you create the gates from transistors.

Re: Show HN: I made a game where you build a CPU from logic gates

#7

Post by azatom » Thu, Jul 30, 2026, 1:27 PM UTC

sebastiansm7 wrote: post #6

I wasn't able to wire the inputs to the gate, so my career at ChipCorp ended at level 1. Also it would ne nice to have a level zero where you create the gates from transistors.

-1: build transistor from atoms

-2: ...

:)

(ofc the UI could be more simpler but I've found the wiring)

Re: Show HN: I made a game where you build a CPU from logic gates

#8

Post by mrkO99 » Thu, Jul 30, 2026, 1:31 PM UTC

Got stuck at the NAND gate level.

Re: Show HN: I made a game where you build a CPU from logic gates

#9

Post by 1718627440 » Thu, Jul 30, 2026, 1:35 PM UTC

Would be nice to be able to skip the first levels, because learning an AND gate is not necessarily what everyone needs as first steps, regarding their skill level.

Re: Show HN: I made a game where you build a CPU from logic gates

#10

Post by jbgrt » Thu, Jul 30, 2026, 1:36 PM UTC

sebastiansm7 wrote: post #6

I wasn't able to wire the inputs to the gate, so my career at ChipCorp ended at level 1. Also it would ne nice to have a level zero where you create the gates from transistors.

The game you're looking for is Turing Complete https://turingcomplete.game/