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How to run a city builder on 16 MHz

https://larstofus.com/2025/11/16/how-to-run-a-city-builder-on-12-5-mhz/
11•rex64•1d ago

Comments

phire•29m ago
> The original SimCity for example lists Intel’s 386SX as the CPU in it’s system requirements.

Not sure where that comes from. The original release box art [1] says it will work on any PC with 512KB of ram. So that's an 8088 running at just 4.77 MHz.

But that's far from the lowest spec port of the game. The Commodore 64 version might have been missing quite a few features (like stadiums, police/fire stations and railways), but the main city simulation loop was there in just 64KB of ram and a 1MHz 6502.

And the BBC Micro/Acorn Election port was even more impressive. Had basically all the features of the full Amiga/PC/Mac version, only missing Music/Sound/Animation. With a 2Mhz 6502 (or 1Mhz on the Election) and just 32KB of ram.

[1] https://images.launchbox-app.com/79861ce4-75ea-46dd-b46e-521...

ant6n•21m ago
I was running Sim City 2000 inside Win 3.1 on an 386 with 33MHz (I had 16MB of ram though). But it was virtually unplayable.
retrac•5m ago
This reminds me of microcity which is a Simcity Clone for the Game Boy Colour.

The author has some great in-depth docs about the design, and how they managed to make a fairly lively-seeming simulation fit into a machine with an 8 MHz 8-bit processor.

https://github.com/AntonioND/ucity/blob/master/docs/index.rs...

OBS Studio 33

https://github.com/obsproject/obs-studio/releases/tag/33.0.0
155•pentagrama•5h ago•43 comments

I Don't Understand Quantum Physics

https://www.southampton.ac.uk/~doug/quantum_physics/index.html
6•rramadass•10m ago•2 comments

Kimi K3.1 Pro and K3.1 Pro Highspeed

https://www.kimi.ai/blog/kimi-k3-1-pro
915•Jowsey•17h ago•533 comments

Physicists trap a single antimatter particle for a month

https://www.scientificamerican.com/article/physicists-trap-a-single-antimatter-particle-for-a-month/
48•mooreds•2d ago•16 comments

Today, we hacked what we'd set out to hack: the iPhone

https://blog.calif.io/p/iphone
885•pavel_lishin•17h ago•578 comments

Twelve years of distributed SQLite

https://philipotoole.com/twelve-years-of-distributed-sqlite/
202•otoolep•8h ago•25 comments

How close can pure functional programming get to C?

https://rtfeldman.com/fp-vs-c
121•stmonty•6h ago•12 comments

ThinkRail from JetBrains

https://thinkrail.ai/
18•wilsonjholmes•1h ago•3 comments

Apple Music 404 Not Found

https://music.apple.com/this-url-doesnt-exist
764•frizlab•21h ago•232 comments

Local Wikipedia: Wikipedia, but only for things a half hour walk from you

https://edjefferson.com/localwiki/
1384•sohkamyung•1d ago•235 comments

A practical guide to AI image generation, from diffusion to agents

https://danielball.com/notes/ai_image_generation.html
94•westsmith•3d ago•28 comments

How to run a city builder on 16 MHz

https://larstofus.com/2025/11/16/how-to-run-a-city-builder-on-12-5-mhz/
13•rex64•1d ago•3 comments

Bringing uv and ty together

https://astral.sh/blog/uv-ty-integration
155•Ravencentric•3d ago•37 comments

Dessa: Conversation Model trained only on speech

https://block.xyz/dessa
389•dsr12•14h ago•139 comments

Around a dozen banking apps began specifically permitting GrapheneOS

https://grapheneos.social/@GrapheneOS/117492375462459244
72•privacyishuman•8h ago•6 comments

Apple Security Research Device

https://security.apple.com/research-device/
67•neom•7h ago•22 comments

CVE Tracker

https://cve.0xosprey.com/
171•Group_B•12h ago•61 comments

The Best Monopoly Strategy, Tested on 300M Games [video]

https://www.youtube.com/watch?v=S_2eVAaw1UM
25•zdw•3d ago•17 comments

Canadians are running out of time to oppose Bill C-22

https://www.eff.org/deeplinks/2026/10/canadians-are-running-out-time-oppose-dangerous-c-22-survei...
417•hn_acker•1d ago•220 comments

Hacker reverses Samsung TV, finds on-board AI listening OpenAI account suspended

https://www.reddit.com/r/antiai/comments/1xdv3e5/hacker_reverse_engineers_his_samsung_tv_and_finds/
134•testing22321•4h ago•23 comments

The Real Kevin Bacon

https://pudding.cool/2026/10/kevin-bacon/
308•xnx•3d ago•78 comments

U-2 spy plane makes rare appearance in Bay Area flyover

https://www.sfgate.com/bayarea/article/government-spy-plane-49ers-22485781.php
3•bookofjoe•3d ago•0 comments

How Block Blast harvests its players for ad money

https://ayoships.com/breakdowns/block-blast
53•motionlessveloc•7h ago•16 comments

C vs. C#: racing VLC's Gaussian blur

https://martinfinkel.com/blog/gaussian-blur-c-vs-csharp/
80•martz•3d ago•22 comments

The Quake Fan who built the map editor everybody uses

https://funcarena.com/articles/the-quake-fan-who-built-the-map-editor-everybody-uses
115•klaussilveira•1d ago•11 comments

One Man's Pan Am 747 Replica [video]

https://www.youtube.com/watch?v=vAFwHGGfPz4
35•Teever•12h ago•2 comments

Air Purifiers as White Noise Machines

https://www.jefftk.com/p/air-purifiers-as-white-noise-machines
131•luu•16h ago•119 comments

Show HN: Corgi, a helpful {agent, terminal} multiplexer

https://corgi.computer/
83•eiopa•14h ago•23 comments

Rise of collagen-eating microbes may help explain gaps in the fossil record

https://www.cam.ac.uk/research/news/rise-of-collagen-eating-microbes-may-help-explain-gaps-in-the...
48•gmays•3d ago•2 comments

UUIDv7: Timestamps aren’t time-ordered and other oddities

https://alexsci.com/blog/uuidv7-is-weird/
148•ibobev•17h ago•119 comments