iiinova — where your digital self keeps evolving

Bad Computer @badcomputer.bsky.social · 22/09/2026

Got one of these yesterday. I grew up with a Sega Saturn and never got into PS1 emulation that much so a lot of things to discover. There's also all the other cores to play with since it's basically a MiSTer too.

Photo of the SuperStation One box front.

Photo of the SuperStation One box back show all the homebrew games included.

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Bad Computer @badcomputer.bsky.social · 17/09/2026

I was certain I had Gley Lancer in storage somewhere but I couldn't find it. But I still found lots of old friends instead 🫡

A collection of shmups for the Sega Mega Drive in boxes.

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Bad Computer @badcomputer.bsky.social · 14/09/2026

Official physical editions of my Master System games are planned for next year — made professionally, as with Frontier Force. I will announce specific titles, and where to get them, as they are confirmed. Thank you again for all the support! #mastersystem #homebrew

A boxed copy of a master system game with the manual, cartridge and poster laid on the table in front of the box.

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Bad Computer @badcomputer.bsky.social · 10/09/2026

Razing Core is out now for the SEGA Master System. • 7 stages across the solar system • Upgradable primary, secondary and melee weapons • Multiple huge bosses and mid bosses Free stage 1 demo available. Thanks for all the support so far! badcomputer0.itch.io/razing-core

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Bad Computer @badcomputer.bsky.social · 08/09/2026

Razing Core for SEGA Master System is now available. The full version and demo are here: badcomputer0.itch.io/razing-core

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Bad Computer @badcomputer.bsky.social · 31/08/2026

We're into the final phase of testing now for the demo and final version of Razing Core. The release should be fairly soon. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 06/08/2026

We now have a working attract mode of various stages! There will be a permanent recording of me (deliberately) playing badly to enjoy in the game. Not many things left to do now before testing 🫡 #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 29/07/2026

Here's a version with a slightly smaller ship.

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Bad Computer @badcomputer.bsky.social · 29/07/2026

With some space left on the ROM I've added a ship to the title screen and some other nice surprises throughout the game. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 27/07/2026

I've added more debug options to Razing Core which can be used for practicing. These options are hidden by default but are easy to reveal. #homebrew #mastersystem

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Bad Computer @badcomputer.bsky.social · 26/07/2026

Working on the demonstration screen today since it hadn't been updated for a while. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 17/07/2026

Working on more various pixel art for the cut scenes. 🌍 #mastersystem #homebrew

Title screen for a master system shoot em up entitled Razing Core, showing the earth in the top right surrounded by space filled with stars.

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Bad Computer @badcomputer.bsky.social · 24/06/2026

Now working on the final boss! ✍️ (this one is another guy from the game) #mastersystem #homebrew

Preview of an enemy showing it's yellow eyeball and metallic skin.

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Bad Computer @badcomputer.bsky.social · 05/06/2026

Looks very nice already! Not a surprise from the devs/artists of Cuphead.

Mighty Cuphead Adventure title screen screenshot showing four characters in the foreground looking into the distance at a castle/palace of some kind.

Mighty Cuphead Adventure gameplay screenshot with a blue sky and desert platforms.

Mighty Cuphead Adventure gameplay screenshot with a large carrot boss.

Mighty Cuphead Adventure gameplay screenshot with a sunset city background and cityscape type foreground platforms.

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Bad Computer @badcomputer.bsky.social · 14/05/2026

This week I've been working on the core (melee) weapon. It's now limited use and gives a score bonus for destroying an enemy. It feels more balanced but satisfying to use I think. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 04/05/2026

In Razing Core the player's hit box is represented by the orange cockpit to make it clear. One other way I found to make the hits feel more fair was to keep the bullet and player on screen for a few frames to make it clear. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 28/04/2026

Road Fighter won the SMS Power coding competition! Thanks again to Chirinea for teaming up. There were a lot of great entries this year. Now we have to think of something for next year. #mastersystem #homebrew

A table of results for the SMS Power Coding competition 2026.

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Bad Computer @badcomputer.bsky.social · 22/04/2026

Found this little guy in the background escaping my path of destruction in Power Strike 2 (Stage 7). Lovely little detail! #mastersystem

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Bad Computer @badcomputer.bsky.social · 21/04/2026

In Frontier Force using different weapons is an important mechanic to learn but is only documented in the manual. Some people found it difficult for this reason. In Razing Core I'll attempt to explain everything in-game to make things easier. #homebrew #mastersystem

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Bad Computer @badcomputer.bsky.social · 15/04/2026

A fun fact when making this, I designed the ship model in Blockbench but the exported wire frame version (left) was too busy at low-resolution for the SMS. As a quick solution I textured the model with simple wire frames and exported that textured model instead. It's so silly but it worked.

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Bad Computer @badcomputer.bsky.social · 14/04/2026

One of the SMS Power competition coding entries is a nice speech synthesis program. I tested it here (the whole Radiohead song would be funny).

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Bad Computer @badcomputer.bsky.social · 13/04/2026

Remember this one back in the day?

Mock-up Sega Mark III box cover for the (homebrew) game Road Fighter.

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Bad Computer @badcomputer.bsky.social · 13/04/2026

After looking at asteroids and craters for several months I can finally draw something nicer. 🏖️ #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 07/04/2026

Working on a new boss area for Razing Core. I removed the boss to avoid spoiling the surprise! 💥 #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 03/04/2026

A tip for anyone struggling in Road Fighter, you can use the Konami code on the title screen at "press start" to get unlimited fuel (still lose fuel when crashing). You will hear a sound if it worked. 🆗 #mastersystem #homebrew

A Sega Master System controller with the Konami code (up, up, down, down, left, right, left, right, 1, 2) above it.

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Bad Computer @badcomputer.bsky.social · 28/03/2026

My 2nd entry in the SMS coding competition was this ship schematic screen. It's a graphical demo with a 3D wire frame ship. It will also be an Easter egg in my in-development shoot 'em up "Razing Core". Music is by @lovelovepenguin.bsky.social #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 27/03/2026

Our remake of Road Fighter for SEGA Master System/Mark III is now available to play. Download for free below. www.smspower.org/Homebrew/Roa... #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 18/03/2026

Razing Core is a shoot 'em up in development for SEGA Master System/Mark III. I plan to release it this year on itch digitally with a physical version to follow. #homebrew

Title screen in space with a round ball weapon type object at the centre.

Gameplay of the player ship flying above an enemy station in space.

Gameplay of the player ship flying above an icy landscape.

Gameplay of the player ship flying above a large asteroid surface attacking 3 enemy silos.

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Bad Computer @badcomputer.bsky.social · 08/02/2026

On Feature Creep Friday I added a new secondary laser weapon. It seems to be equally overpowered and annoying to use in most situations, which seems like a good combination. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 06/02/2026

If you see this, post a picture of a Master System game.

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Bad Computer @badcomputer.bsky.social · 05/02/2026

Taking a rest from stage building to work on some small cosmetic improvements. Added some fast background stars to the entry and to some boss fights. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 25/01/2026

Now that most of the main parts of Razing Core are in place I'm able to go back and upgrade some things where possible. Today I've been improving visibility in game with some brighter and bigger fonts, bigger powerups, and darker backgrounds. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 22/01/2026

ATTENTION INDIEDEVS Show off your art style I'm currently developing games for the SEGA Master System. I like to use pastel or dark backgrounds with bright and bold foreground sprites. #pixelart #indiegame #indiedev

A jungle background with a pink sky and blue mountains. In the foreground the player stands on the ground firing a laser at enemies in the sky.

An astronaut runs across a dangerous platform to escape a spiky creature.

A blue sky in a desert background. The player stands on the ground firing missiles into the sky at enemies.

The player space ship is firing flame bullets upwards towards an enemy. The background shows some kind of space station platform with construction beams and lights.

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Bad Computer @badcomputer.bsky.social · 18/01/2026

This feature was late for the Razing Core demo but I've now added more background destruction for scoring, and it's just fun to destroy things! #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 14/01/2026

The SMS only has two true grey colours but you can use a neat trick. Here I use a midtone brown, which when placed alongside other bright reds appears grey. Also notice dark grey appears green when placed in red, as green is opposite to red on the RYB colour wheel. #pixelart

A diagram illustrating the effect of perception of colours when placed beside different colours.

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Bad Computer @badcomputer.bsky.social · 10/01/2026

Every time I finish making a stage in Razing Core I replay the whole game up to the end of that stage. I can honestly say this is the most fun I've had playtesting one of my own games so far. I hope everyone else will feel the same. #homebrew #mastersystem

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Bad Computer @badcomputer.bsky.social · 08/01/2026

Razing Core at MAGFest Homebrew Showcase representing the SEGA Master System! 😎 A big thank you to @megacatstudios.bsky.social for putting on the display, and picture courtesy of @shanelynch.bsky.social #mastersystem #homebrew

A TV and joystick on a table in a hall, the TV shows the game Razing Core playing on it.

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Bad Computer @badcomputer.bsky.social · 31/12/2025

In 2025 I released two new SEGA Master System games and started work on another. In 2026 my goal is to release another two for SMS and another unknown project. Thanks for all your support this year! #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 27/12/2025

In Razing Core there's a small period of invincibility when you collect anything, this allows you to be more aggressive or escape to safety. #homebrew #mastersystem

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Bad Computer @badcomputer.bsky.social · 19/12/2025

Polite reminder my two most recently released SEGA Master System games don't have speedrun times recorded and are actual complete games. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 19/12/2025

Work continues on Razing Core. Quote of the day from Zanac dev Takayuki “Jemini” Hirono: "Often what the developers think of as easy or middling difficulty, to the average person, it’s already more than hard enough." Have a good weekend. #mastersystem #homebrew

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Bad Computer @badcomputer.bsky.social · 24/11/2025

The last copies of Frontier Force are now available from 2Minds! ⬇️ "Fast shipping in Colissimo (priority mail) only. I will not ship to the USA due to problem between Laposte & US. tariffs... " #mastersystem #homebrew

Several boxed copies of the Sega Master System homebrew game Frontier Force. The cover of the box shows a man with blonde hair holding a large weapon.

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Bad Computer @badcomputer.bsky.social · 12/11/2025

Work in progress next stage in Razing Core. Only 1/3 of the game is in outer space, so all the remaining stages will have a greater variety. #mastersystem #homebrew

Screenshot of a shoot 'em up game with the player ship at the bottom firing upwards facing multiple enemies from above. The background is an icy landscape with a constructed canyon carved into it.

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