Learning · video game
GPU building game
Teaches digital logic through hands-on wiring of gates into GPU parts, though critics say it assumes prior circuit knowledge and explains some steps poorly.
Summarized from 65 comments.
Teaches digital logic through hands-on wiring of gates into GPU parts, though critics say it assumes prior circuit knowledge and explains some steps poorly.
- recommend
- 49
- criticize
- 16
- months recommended
- 2 of 13
Why people love it
Hands-on way to learn logic · 4
The visual point-and-click experience with explanations in the intro levels specifically made it click for me.
Apr 2026 · commentI really like the hands-on approach to learning digital logic through a game format.
Apr 2026 · commentI love learning-by-doing and this captures that cycle perfectly.
Apr 2026 · commentClear progression to GPU components · 2
The progression from basic logic gates to actual GPU components is exactly how I would want to learn this.
Apr 2026 · commenta brilliant way to visualize complex hardware architecture
Apr 2026 · commentFun to play around in · 3
the idea is great and it's super fun to play around in
Apr 2026 · commentI loved this! I played for straight up 2 hours now!
Apr 2026 · commentOtherwise I really enjoyed playing the game!
Apr 2026 · commentRefresher for electronics studies · 2
It's nice to recall my asic classes, and looking forward to GPU specific chapters.
Apr 2026 · commentan interactive refresher on my EE studies
Apr 2026 · comment
What people warn about
Level progression and loading bugs · 3
The “next level” button takes you to the next level even if you haven’t solved that level’s prerequisites.
Apr 2026 · commentI see a difficulty pop up after I click "run tests" but it then gets hidden and doesn't do anything.
Apr 2026 · comment2.2 loads a blank screen for me, all previous levels were fine and 2.3 loads.
Apr 2026 · commentClunky controls and rough UI · 3
Having to switch between 'select', 'wire', and 'delete' modes is a bit cumbersome.
Jul 2026 · commentthe UI is a bit rough around the edges and doesn't support copy paste
Apr 2026 · commentOverall it's pretty good, I just think polish would got quite a ways.
Apr 2026 · commentAssumes prior digital logic knowledge · 2
I personally seem to lack the absolute basic knowledge that is required to make sense of the tutorial messages
Apr 2026 · commentwas fun but having prior knowledge about digital circuits is a must have in my opinion
Apr 2026 · commentLarge circuits become hard to read · 2
Pretty fun, needs some improvements: wire routing makes most circuits write-only.
Apr 2026 · commentAny level with more than 8 components will end up impossible to read.
Apr 2026 · comment
What hackers pick instead
- Turing CompleteA puzzle game where you build a working computer from logic gates, praised for teaching how CPUs and assembly work in a fun way. Critics say it is buggy, still in early access, and does not cover other processors in depth.22recommend
- Learn Flags QuizRecommended as a fun, ad-free, account-free way to learn flags through addictive quizzes. Critics note that flags are forced into one aspect ratio and that country selection sometimes repeats or skips countries.16recommend
- nandgameBrowser game where you build a computer from logic gates down to transistor level, which people say makes how small circuits combine into large ones clear. One reviewer found the UI plain and some concepts oversimplified.11recommend
- MapTapRecommended as a fun, detailed way to learn NYC neighborhoods; critics note it includes NJ while omitting the Bronx and much of Queens and Brooklyn.9recommend
Every quote
The 40 most detailed of 65 comments. Each links to the original.
This is an excellent game overall. I have always had a REALLY hard time understanding the electronics behind gates and this has been super helpful.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
I personally seem to lack the absolute basic knowledge that is required to make sense of the tutorial messages
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
The visual point-and-click experience with explanations in the intro levels specifically made it click for me.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
The progression from basic logic gates to actual GPU components is exactly how I would want to learn this.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
was fun but having prior knowledge about digital circuits is a must have in my opinion
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
I really like the hands-on approach to learning digital logic through a game format.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
Having to switch between 'select', 'wire', and 'delete' modes is a bit cumbersome.
Mixed · Jul 2026 · in “I made a game where you build a CPU from logic gates”
It's nice to recall my asic classes, and looking forward to GPU specific chapters.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
Pretty fun, needs some improvements: wire routing makes most circuits write-only.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
2.2 loads a blank screen for me, all previous levels were fine and 2.3 loads.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
the UI is a bit rough around the edges and doesn't support copy paste
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
Overall it's pretty good, I just think polish would got quite a ways.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
Any level with more than 8 components will end up impossible to read.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
I love learning-by-doing and this captures that cycle perfectly.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
a brilliant way to visualize complex hardware architecture
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
the idea is great and it's super fun to play around in
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
I loved this! I played for straight up 2 hours now!
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
Otherwise I really enjoyed playing the game!
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
an interactive refresher on my EE studies
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
The “next level” button takes you to the next level even if you haven’t solved that level’s prerequisites.
Criticizes · Apr 2026 · in “Show HN: A game where you build a GPU”
I see a difficulty pop up after I click "run tests" but it then gets hidden and doesn't do anything.
Criticizes · Apr 2026 · in “Show HN: A game where you build a GPU”
it was all reasonably easy to get until you get to the sense amplifier which has an almost complete lack of explanation
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
Great game! For learning, might be nice to see some commentary or example (model) solutions after beating a level.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
Small feedback: The test should maybe auto run. I solved the first level and was confused why I didn't proceed.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
Otherwise, quite a fun little game, if slow paced when one already knows some bits of digital logic.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
I enjoyed it and also found it interesting that the js was under 100k and served with br-encoding.
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
this is the guide to comp arch that will (hopefully) end all instances of toil over documentation
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
I got many duplicate questions and for some reason I got only one second for the first question.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
You've got a gem in the works here, looking forward to seeing how it continues to develop!
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
This is such a cool idea, definitely the first 3-state circuit puzzler I've seen!
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
But it's backwards, you test people on truth tables before teaching them.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
A nice game, though the truth table lighting round is pretty punishing!
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
No authentication to save the level so that you can continue next time.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
the real advantage from the custom language is a huge performance boost
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
This is awesome! The truth table lightning round took me by surprise
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
This is excellent, both educationally and from a UX standpoint!
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
I have been looking for something like this for so longggg!
Recommends · Apr 2026 · in “Show HN: A game where you build a GPU”
Awesome! But too difficult for a beginner like me
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
The games are 100% free and no account is needed.
Recommends · Apr 2026 · in “I revived Encarta's Mindmaze and added a new game teaching how to build chips”
Nothing on the page could justify that.
Mixed · Apr 2026 · in “Show HN: A game where you build a GPU”
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