iiinova — where your digital self keeps evolving

xot @xot.mastodon.gamedev.place.ap.brid.gy · 03/10/2026

Time for some mischief. This very rare Apple Mega II ASIC will sacrifice itself upon the Altar of Knowledge, Acid, and Photomicrography.

A large square IC chip in a clear protective acrylic case, sitting on bubble wrap.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 19/09/2026

DENIS KITCHEN: Three Comics Collections — Three risograph-printed issues collecting underground cartoonist Denis Kitchen's comics from the 1960s through today. www.kickstarter.com/projects/jtyost…

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 17/09/2026

An Archive of Colour Gradients: For cartography, technical illustration, and design. phillips.shef.ac.uk/pub/cpt-city

Rain in the eastern Caribbean using a scheme by Hayden James

Detail of aeromagnetic image of the Yilgarn region in Western Australia using the CET-L20 scheme

Schemes from Nicholas Rougeux’s recreation of Mose Harris’ colour wheels

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 14/09/2026

There is no way we're gonna have enough hot dog suits to go around. "Anthropic CEO warns of AI-driven botnet 'swarm' taking over the entire internet — 'In 6–12 months such a swarm could be capable of taking over the entire internet with a persistent […] [Original post on mastodon.gamedev.place]

Dario Amodei, CEO of Anthropic, looks like he just pooped his pants.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 03/09/2026

Harry Clarke — Illustration for Edgar Allan Poe's “A Descent into the Maelström” (1919)

From the edge of a giant ocean whirlpool, looking down into the abyss, a man caught in its current clings to a barrel, a boat glides along the vertical wall of the torrential funnel, and flotsam is swallowed by darkness.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 02/09/2026

Reverse Engineering Unknown File Formats with ImHex An Introduction to File Formats and ImHex by Reverse Engineering FEZ's Save File Format werwolv.net/posts/file_format_rever…

Composite image showing a colorful hex dump (upper left) and a screenshot from the game Fez (bottom right).

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 27/08/2026

"This site contains the original illustrations and text from the 21st edition of [Five Hundred and Seven Mechanical Movements by Henry T. Brow], published in 1908. It also includes animated versions of the illustrations and occasional notes by the webmaster." 507movements.com

Ten illustrations from "Five Hundred and Seven Mechanical Movements" show various methods of power transmission through pulleys.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 18/08/2026

Neat! The Legend of Zelda: Z for 2 - Two Player Simultaneous Co-Op "Player 2 takes on the role of Link’s Shadow. Either player can pick up and use any item, and each player can select their active item independently of the other. Players share […] [Original post on mastodon.gamedev.place]

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 14/08/2026

"226 Ansel Adams Photographs of Great American National Parks Are Now Online" Open Culture www.openculture.com/2026/08/ansel-a…

"The Tetons - Snake River," Grand Teton National Park, Wyoming
by Ansel Adams

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 01/08/2026

Rebecca Heineman's source code disks for Apple II, Apple IIGS, and C64 versions of "Tass Times in Tonetown" were recently imaged at KansasFest 2026 and are now archived. Burger Becky was an incredible and beloved engineer and raconteur whom we sadly […] [Original post on mastodon.gamedev.place]

Title screen of the Apple IIGS version of "Tass Times in Tonetown". A white dog dives out of the smashed computer monitor. He wears red-rimmed glasses and a brown felt hat with press credentials tucked into the blue hat band. The title appears at the top, and text below reads: "Designed by Interplay Productions and Brainwave Creations, copyright 1986 Activision, Inc."

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 11/07/2026

Two white whales! Thank you, Dan!

"Understanding the Apple II" and "Understanding the Apple IIe" by Jim Sather.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 18/06/2026

"We have Amiga at home." Amiga at home:

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 04/06/2026

I didn't have an Amiga, but I was enraptured by a crude version of this animation on my Atari ST. "Recovering Eric Graham's 1987 Juggler raytracer source code" Chris Hanson

$Frame from a classic Amiga animation called "The Juggler". A figure, resembling a stick figure, stands on an infinite green and yellow chessboard under a blue sky. The figure is constructed from variously colored spheres for arms, legs, torso, head, and eyes. It juggles three glass spheres. The elements reflect and refract light and receive shadows, with a degree of realism and color depth uncommon when the animation was created.$

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 25/05/2026

Just what the heck is a zork? "Solving the 'Zork' Mystery" David Polakovic www.dpolakovic.space/blogs/zork-par…

Lower portion of a 1980 painting by Gino D'Achille for a Jack Vance novella. From a low angle, a muscular, humanoid creature in the foreground faces away and approaches a three-storey colonial house with a veranda in a twilit open field.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 18/04/2026

One of my favorite bits from the pages of Creative Computing (June 1981) is this article about how Alan Sutcliffe created the computer display for the Nostromo landing sequence in the film Alien.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 16/04/2026

A weird sense memory triggered this image in my mind. This is the first thing I drew in a drawing program I wrote for my Apple II Plus back in the day. I think I was brainstorming a zoomed drawing feature on the left. Call MoMA!

An Apple II hi-res drawing of a bearded man at a bar holding a drink from the point of view of the bartender. Behind the man is an arcade cabinet for a game called ZAPPO! and a jukebox. On the left are the letters A and B in the Apple II font, and above, the letters are enlarged to show individual pixels.

The command line reads "]HGR" to set the hi-res graphics mode, and "]BLOAD FIRST,A$2000" to load the image file into display RAM.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 16/04/2026

No space toilet discussion is complete without Heywood Floyd examining the perilously long instructions for the zero gravity toilet in 2001: A Space Odyssey. Kubrick's comedy is underrated.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 15/04/2026

"Friday Archaeology: A Communist Apple II and Fourteen Years of Not Knowing What You’re Testing" Alexander Feldman llama.gs/blog/index.php/2026/04/10/…

IMKO-1 — the first Bulgarian personal computer

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 12/04/2026

This is a pretty neat algorithm. It selects a random subset of size k from the set of integers [1, n]. I'd normally do this by shuffling the set and selecting the first k values, but this is more efficient ... and not remotely intuitive. Floyd's […] [Original post on mastodon.gamedev.place]

def floyd(n, k):
s = set()
for i in range(n - k + 1, n + 1):
t = random.randint(1, i)
if t in s:
s.add(i)
else:
s.add(t)
return s

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 24/02/2026

Whoever designed this Avid logo wasn't paid enough.

AVID is spelled with geometric shapes: a triangle, base down; a triangle, base up; a vertical bar; a triangle, base against the bar. Together they resemble video interface glyphs for volume control and frame advance.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 22/02/2026

Aww, man. Gamedev City is over. I get it, though. I tried to do something like this in 2008. Building it was fun, but running it was exhausting. gamedev.city

Hi there!

After much consideration, I've decided to take Gamedev City offline for now.

At the moment, I don't have the time or energy to maintain and update the site in the way it deserves.

When I first created Gamedev City, I was still learning a lot and didn't fully realize how much ongoing work a project like this would require. But it was a great experience, and I'm glad it lasted this long!

I'm very grateful to everyone who visited, shared links, and left comments.

If you have any questions, feel free to reach me at contact@saint11.org.

I hope to return in the future with a refreshed and improved version of the website.

— Pedro Medeiros

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 05/02/2026

Very sad to hear that Sandy Duncan has passed. Without Sandy's considerable investment, leadership, and team building, there would be no GameMaker today. It would have faded into memory long ago, and many wonderful indies might never have realized their dreams. RIP.

Geoff Gunning, Lee Turner, Stuart Poole, Sandy Duncan, Malcolm Collins, Jesse Venbrux, Allison James, Kirsty Scott, Russell Kay, Mike Dailly

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 27/01/2026

I wrote my first 6502 emulator on February 24, 2017. Seven years and several emulators later, you can still detect its footprints.

First working version of 6502-emulator, developed with GameMaker Studio 2, and running the Easy 6502 snake game. The debugger shows register and memory inspectors.

A recent build of Mono6502, developed in MonoGame, is a 5th-generation version of the original emulator. The debugger's register and memory inspectors look suspiciously familiar.

LazyGit showing the initial commit of 6502-emulator, dated Feb 24, 2017.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 12/01/2026

This new Apple II game is an incredible take on Frogger and Crossy Road. It's extremely well-made and has varied and fun challenges. Bravo, Ben and Paul Wasson. www.lasermego.com/a2sw/froggo

Froggo title screen with a happy, smiling frog.

A frog sits on an embankment after crossing several lanes of traffic. Ahead is a flowing river full of drifting logs and safety beyond it.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 12/01/2026

I finally got smart and quit writing weird formulas to get my composite color decoding to look right. Now I can load raw images into Affinity Photo, tweak the colors until I like them, and use those tweaks to create a LUT texture for a new color correction shader. Why did that take me so long?

Emulated Apple II displaying Apple's Integer BASIC "Kaleidoscope" demo, as seen in the Star Wars Holiday Special. Wait, what?

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 30/12/2025

The layout engine is working great. Those little frames around the debug modules? That used to be a terrible hack. Each module is an independent text console but their frames were drawn separately on a giant console in the background. Now each console draws its own frame in an all new terrible way.

Apple II emulator running Total Replay. The display in the top left is flanked on three sides by 13 individual debugging modules.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 22/12/2025

I finally made some progress with a layout engine for my emulator's debugger. The manual layout I've been using (right) is a nightmare to manage and essentially impossible to change at runtime. The new system (left) easily handles dynamic element insertion, deletion, resizing, and container fitting.

A debugger mockup with various modules in a hierarchical layout of rows and columns. CLI and Disassembly modules automatically expand to fit available space.

A manually laid-out debugger setup. The new layout system will accommodate this arrangement and others much more easily and interactively.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 20/12/2025

@congusbongus Submitted by an unnamed correspondent to Nature and published April 20, 1876.

Algorithm to compute the date of Easter.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 15/12/2025

Added a fun memory heatmap to my Apple II emulator. The black area represents the 64K address space. It shows memory accesses in real time, blue for reads and red for writes. It still needs some work, but the proof of concept works. Ultimately, it should show all memory, not just the address space.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 06/04/2025

Hey. You don't need to try that idiotic generative AI Quake 2 thing. It is at least as bad as you imagine and probably much worse. There is no joy in it and it is an unimaginably colossal waste of resources. Please do not reward these arsonists with your attention.

This Microsoft Muse promotional image shows a screenshot of a Generative AI version of Quake 2. Most of the image's color has been drained to express lifelessness. Dominating the image is an enlarged Windows 95 recycle bin icon that suggests the best place for the product.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 02/03/2025

I'm utterly enraged that the new Grok logo is kinda good.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 25/02/2025

For those playing along at home, here is a Project 2025 Tracker. Those freaks have set an amazing pace and should be done in no time. www.project2025.observer

Project 2025 Tracker shows that 36% of objections are completed.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 17/02/2025

Engagement numbers between Bluesky and Mastodon have completely flipped. Mastodon has been dead and I really tried to juice the Mastodon numbers by boosting the post twice during the week at different times of the day. Left: Mastodon (2 Boosts, 2 Likes) Right: Bluesky (18 Reposts, 47 Likes)

A game development post on Mastodon shows 2 boosts and 2 likes.

A game development post on Bluesky shows 16 reposts and 47 likes.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 11/01/2025

Debug Draw 3D (and 2D) plugin for Godot Features: Arrow, Billboard opaque square, Box, Camera Frustum, Cylinder, Gizmo, Grid, Line, Line Path, Line with Arrow, Points, Position 3D (3 crossing axes), Sphere, Text, Graphs. dd3d.dmitriysalnikov.ru/docs/1.4.5/… via gamedev.city

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 25/12/2024

Happy Life Day from the Galactic Empire, rebel scum!

A frame from the Star Wars Holiday Special. An Imperial Officer stands by an Apple II computer display showing "Rod's Color Pattern" by Apple employee #6, Randy Wigginton, and printed in the Apple "Red Book" Reference Manual.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 18/12/2024

I was instantly informed it is a modem interface, specifically a Novation Apple-CAT Expansion Module.

Picture of a Novation Apple-CAT Expansion Module.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 18/12/2024

I was checking out the Apple II featured in National Lampoon's Vacation. In HD there was much more to it than my old VHS copy could resolve. It has a few interesting modifications which suggests it was a crew member's well-loved machine. There is a […] [Original post on mastodon.gamedev.place]

Two angles of the Apple II computer seen in National Lampoon's Vacation.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 07/12/2024

Welp, that's my plans for the day ruined.

Upcoming pannenkoek video called "Every Goomba Glitch in Super Mario 64".

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 02/12/2024

I assume this means Ye will follow up with a Buick T-Type.

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 02/12/2024

It's wild to me that Kendrick Lamar would feature the Buick GNX four years after Run the Jewels featured the Buick Grand National. Is there some kind of message here?

Run the Jewels with a Buick Grand National

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xot @xot.mastodon.gamedev.place.ap.brid.gy · 26/11/2024

You know the rules: Every Lancia Stratos in Alitalia livery gets posted. via Kenji Sasaki (sasappo) on the dead bird site.

Sega Rally 2 Re-Arrange Album "Another Entries"

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