iapetus 🇵🇹
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newiapetus.bsky.social
iapetus 🇵🇹
@newiapetus.bsky.social
Prototyping/Programming games for retro machines. I also enjoy #pixelart. (Iapetus/Japetus(pronounced Yapetus) was a Titan in Greek/Roman myth.) 日本語が大好きだ。At the moment programming Zezito in the Glittering Caves for several retro machines. #forth
Reposted by iapetus 🇵🇹
Another level in the bag - looks easier than it is!

Trying to address the difficulty progression - which actually has the DUCK introduced earlier than level 9!

Level:
1 - Easy, a few hens
2 - Harder, a few hens
3 - Easy, DUCK only
4 - Harder, hens and lift
5 - Hard, hens
6 - Hard, DUCK only
etc...
November 13, 2025 at 9:52 PM
Reposted by iapetus 🇵🇹
PET Invaders – Release!

As the Earth Space Monitoring Network sounds alarm, you and your LASER tank are Planet Earth's only hope… Exciting space arcade PETSCII action for Commodore PET (40 cols, 16K RAM)!

Downloads & online emulation at:
www.masswerk.at/pet/prgs/#pet-invaders
November 9, 2025 at 6:31 AM
Reposted by iapetus 🇵🇹
Some more "trying things out" 😀 The dev environment now has stars and the scan screen shows the locations of things. Plan is to get some of the gameplay elements tested out and then start porting the code over to 6502.
November 8, 2025 at 12:28 PM
Reposted by iapetus 🇵🇹
Must stop messing with the loader stuff !
Much happier with it now -
Instructions and title page (WIP still !) reintroduced.
Progress bar now handles disc loading too.
November 6, 2025 at 10:41 PM
Reposted by iapetus 🇵🇹
Se acerca el fin de semana y que mejor propuesta para disfrutar de tu Commodore C64 que con este Zezito in the Glittering Caves de @newiapetus.bsky.social
Un arcade plataformero no apto para pintores que deseen desconectar de su día a día.

iapetus2019.itch.io/zezito-in-th...
November 7, 2025 at 7:40 PM
Reposted by iapetus 🇵🇹
Indie Retro News: Zezito in the Glittering Caves for the C64 is fun for all the family www.indieretronews.com/2025/11/zezi... #retrogaming #c64 #commodore64
November 7, 2025 at 3:45 PM
Reposted by iapetus 🇵🇹
More messing with the tape loader !
Many thanks to @0xc0de.bsky.social 's recent Repton 1 loader disassembly, I've put in a (non-Microsoft) progress bar !

It's nice to have the tape blocks counting up, but if you don't know what number they go up to, one could get quite impatient ! 😅
November 4, 2025 at 10:12 PM
November 3, 2025 at 5:57 PM
Reposted by iapetus 🇵🇹
Tony, Montezuma’s Gold es un espectacular plataformas para #Commodore64 lleno de acción y con una genial puesta en escena.
Está disponible en monochrome-productions.itch.io/tony 😃👍🏻🕹️ #retrogaming #videojuegos
November 2, 2025 at 6:36 PM
Reposted by iapetus 🇵🇹
Roshi Milk Course
planetasinclair.blogspot.com
November 2, 2025 at 9:08 PM
November 3, 2025 at 11:03 AM
November 3, 2025 at 9:05 AM
#8bit #gamedev #oric #retrogaming Zezito and the Lost Stars - Worked a bit more on the ORiC version. #indiedev #8bitcoders #pixelart #ドット絵
November 2, 2025 at 11:31 AM
Reposted by iapetus 🇵🇹
Keyboard looking a lot better - probably needs one more going over. A lot of rust spots / pitting on the black metal frame, I guess someone threw a can of Quattro over it at some point !

New speaker lead in place !
October 30, 2025 at 6:31 PM
Reposted by iapetus 🇵🇹
Rebel Wars
planetasinclair.blogspot.com
October 31, 2025 at 10:08 PM
Reposted by iapetus 🇵🇹
Jogo do Mês: S1NCLA1R C1TY
planetasinclair.blogspot.com
October 31, 2025 at 10:13 PM
Reposted by iapetus 🇵🇹
Repton 3 Redux Final sneak peek coming next year.

Features:- integrated editor, attract/demo mode, high score, collect earth for points, cracked eggs behave like rocks, freeze spirits/monsters enable quick getaway, different screen walls including last level mirror.

Electron version video.
October 27, 2025 at 11:33 AM
Reposted by iapetus 🇵🇹
oooOOOOooo it's my first sale 😱
and!
the release of my new fantasy pixel font: Knightwood ⚔

itch.io/s/163869/tjs...

Grab any of my pixel assets for 25% off (including the new font!) or swipe the bundle for 50% off everything 👀

#Font #PixelFont #PixelArt #GameDesign #IndieGameDev
October 27, 2025 at 7:41 PM
Reposted by iapetus 🇵🇹
Got slightly distracted and started looking at the final disc/tape loaders..... 🤯

Exomising the entire game image to reduce footprint / tape load time. Compression ratio about 50%, which will do !

Here's a visual representation of both files - zipped/unzipped !
October 22, 2025 at 4:08 PM
Reposted by iapetus 🇵🇹
Wow.... I started the C64 port of Blood Money 36 years ago!

So to celebrate, I've opened up the first article to everyone. I'll open up more in the coming days - Enjoy!

lemmings.info/c64-blood-mo...
October 23, 2025 at 7:07 AM
Reposted by iapetus 🇵🇹
This is #Megapaint for #C64 bitmap creation. Presenting this famous #LastNinja2 scene!
October 22, 2025 at 8:37 PM
#8bit #gamedev #retrogaming Will I be able to fit this in a 16kb cartridge? Working on it! PNG of just a test for the 6 fully masked sprites. I have 4kb free, but also the rooms are all in & are not compressed so I can get back some kb I hope ;P #indiedev #pixelart #ドット絵
October 22, 2025 at 7:04 PM
Reposted by iapetus 🇵🇹
"Astoraid" but not running on an emulator/real hardware. I've created a mini dev environment using JavaScript + an HTML Canvas that lets me try things out much more quickly than writing lots of 6502. I have a library of routines that mimic the real hardware so the code is close to what it will be...
October 19, 2025 at 3:22 PM