@badcomputer0

Game developer, currently home-brewing for the SEGA Master System/Mark III.

 England
badcomputer0.itch.io
Joined April 2023
  • Tweets1.9K
  • Following472
  • Followers2.8K
287Media
Razing Core for SEGA Master System is now available on itch (see follow up). #homebrew #mastersystem
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Bad Computer retweeted
itch.io@itchioOct 23
Razing Core: With the Horizon's firepower and the Core's unexpected aid at your disposal, you must destroy the invading alien armada to save humanity. badcomputer0.itch.io/razing-… by @badcomputer0
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Bad Computer retweeted
JohnRiggs@johnblueriggsOct 20
Super fun game, too! And free!!
Bad Computer@badcomputer020 Oct 2025
To celebrate the 40th Anniversary of the SEGA Mark III console in Japan, Astro Climber is now available for free on Itch ⬇️ #homebrew #mastersystem
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It's the SEGA Mark III's birthday again. You may want to try Astro Climber which I made last year to celebrate.
Bad Computer@badcomputer020 Oct 2025
To celebrate the 40th Anniversary of the SEGA Mark III console in Japan, Astro Climber is now available for free on Itch ⬇️ #homebrew #mastersystem
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badcomputer0.itch.io/astro-c…

Astro Climber by Bad Computer

For SEGA Master System

badcomputer0.itch.io
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Bad Computer retweeted
Zirolux
@ZiroluxOct 19
Let's drop a podcast on a Sunday. The Shmup Talk Show #7 with Carina! #shmup #stg youtube.com/watch?v=F-ncPbvq…

The Music Behind the Bullets with Carina - The Shmup Talk Show #7...

What goes into creating the soundtrack for a modern shmup? And what...

youtube.com
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Razing Core for the Sega Master System (Bad Computer/2026). New vertical shmup for this classic 8-bit console. With 7 stages, primary, secondary and Core weapons, large bosses and more, it offers great gameplay and reminds me of the Aleste series. Physical release is planned for 2027. badcomputer0.itch.io/razing-… #gamedev #Sega #8bit
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Just grabbed Razing core by @badcomputer0 Awesome shmup for the SMS! I am completely blown away by what indie devs have squeezed out of the Master System.
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Bad Computer retweeted
Bad Computer@badcomputer0Sep 8
Razing Core for SEGA Master System is now available on itch (see follow up). #homebrew #mastersystem
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Thanks for the review Inglebard, I'm glad you liked it!
Inglebard@Inglebard4Sep 19
More Master System? YES! Check out my review of Razing Core, a new vertically scrolling shooter (or SHMUP) for the system from Bad Computer. Is it worth playing? Watch the review for the answer! Link: youtu.be/a6O_G5IRHgY #sega #sms #mastersystem #shmup
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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.

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

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Bad Computer retweeted
Morden ㊙@M0RD3NSep 16
We have been seeing an incredible amount of quality homebrew lately. This includes Razing Core for the Master System by @badcomputer0. You can grab it digitally today, and a physical cartridge release is coming next year. Compile quality gameplay & music! badcomputer0.itch.io/razing-…
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Bad Computer retweeted
Bob from RetroRGB@RetroRGBSep 16
Here's this week's #retrorgbweeklyroundup! Search any video or podcast app for #RetroRGB Weekly, or head to the main link: retrorgb.com/week531.html . #classicgaming #retrogaming #MiSTerFPGA #razingcore #unico #ulw10 #aes+ #neogeo #arcooda #sharptwinfamicom #gamebub #retrotink
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Bad Computer retweeted
Bad Computer@badcomputer0Sep 14
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.

ALT 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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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.

ALT 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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Indie Retro News: Razing Core - A Vertical Shoot 'Em Up for the Sega Master System that's well worth checking out indieretronews.com/2026/09/r… #retrogaming #gaming #games @TheRetroAsylum @ClassicReplay @PixelCNinja @badcomputer0 @SEGAotaku
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Bad Computer retweeted
Daniel Quesada@Tycho_fanSep 11
Este domingo, en el Hobbydirecto retro, probaremos dos NUEVAS JOYAS para Master System: Razing Core y Frontier Force de @badcomputer0 . ¡Cómo sacan partido a la 8 bits de SEGA! El domingo, a las 22.00, hora española: youtube.com/watch?v=BxE0nu6j…
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BRAND NEW Shmup has hit the Sega Master System! @badcomputer0 has released the awesome Razing Core! 7 levels of pure shmup mayhem! I love it! Check out the review here - youtu.be/2BuMwTfADx0 #segamastersystem #homebrew #mastersystem #shmup
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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!
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badcomputer0.itch.io/razing-…

Razing Core by Bad Computer

For SEGA Master System

badcomputer0.itch.io
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The full version and demo is available from the itch page above.
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Since a few have asked, the physical version is planned for 2027.
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