古代祐三 (Yuzo Koshiro)

Earthion is launching September 18! 🎉
Nintendo Switch, PS4/5, and Xbox One/Series X|S, with the Steam version already available.
A brand-new side-scrolling shooter that captures the golden age of late-80s to early-90s arcade shmups.
Dive in and enjoy!

SHINOBI: Art of Vengeance is out now!
I had the chance to contribute a few tracks, and Tee Lopes absolutely crushed it with an incredible soundtrack.
Big love to the SEGA team for making this happen.
Hope you all have as much fun playing it as we did making it!

Yes, absolutely!

That’s for the cartridge version scheduled for release next year. We did consider adding flash ROM, but decided against it for several reasons. I completely understand your point, and I appreciate the feedback.

Since Earthion lets you keep your power-ups via the password system and allows up to 99 lives, this exploit could give an unfair advantage. These changes will help ensure the rankings remain fair for everyone.

We’re also fixing an issue where players could repeatedly destroy high-value objects during the final boss fight by intentionally sacrificing lives to farm points.

We’re planning to release an Earthion update soon, which will fix bugs such as ranking display errors (enemy defeat count) and issues related to achievements.
We’re sorry, but this will require a one-time reset of the rankings.

Already fixed in the latest version!👍

Got dragged into some wild accusations and somehow learned my favorite Tetris track was made with Synthesizer V.
I always thought she was part of the Vocaloid family. Funny I only just found that out. 😂

So to be absolutely clear: no generative AI was used in Earthion’s final version, and we fully respect the work of human artists and voice talent.

Synthesizer V uses AI vocal synthesis, but it’s not generative AI like ChatGPT or Midjourney. It creates voice from written input using licensed voice models, with full consent from the voice providers.

Thank you for your concern.

Just to clarify: while we did use Synthesizer V in the prototype stage for placeholder voices, all of those lines were replaced by real human voice actors in the final release of Earthion.

Of course, we’re planning to keep going!
A beat ‘em up is definitely one of our goals, though it’s quite a challenge to make.
Our next project will probably be a different type of game, but stay tuned!

Earthion is finally out on Steam today!
Thank you so much for your support from the very first teaser to this day.
We poured our hearts into this game, and we hope you enjoy it.
Get ready to fly and fight in Earthion!
🎮 Download now: buff.ly/1DrYi7m

Earthion is finally about to launch!
First up, the Steam version will be released tomorrow.
We’ve poured our hearts into this side-scrolling shmup — we hope you’ll give it a try and see what it means to us.
Please play it and enjoy!
Wishlist here: buff.ly/1DrYi7m

You bet. 100% pure Genesis.

Here’s a video excerpt from Earthion Stage 3, recently revealed and captured directly from my Mega Drive. Watch as huge set pieces slam and shift in real time, with sound effects that hit like never before. And wait until you see the massive boss.

Yes, hopefully sometime early in 2026.

No, the Genesis ROM won’t be included in the Steam release.
It’s a separate physical release.

YouTube video by Limited Run Games Earthion | Digital Release Date Trailer

From Streets of Rage to Earthion
34 years ago I composed the soundtrack for a game that became part of Mega Drive history.
Now, I’m back with a brand-new shooter packed with even more energy, speed, and power.
Earthion lands on July 31.
The countdown has begun.
youtu.be/q-PEQZNurFs?...

シュー大祭 公式サイト 「シュー大祭 ～シューティングゲーム大感謝祭～ 2025」6月14（土）・15日（日）開催！2025年にシューティングゲームをリリースするメーカーが一堂に会し、ゲーセンミカドYouTubeチャンネルにて最新情報＆ゲームプレイを2日連続で配信！

Earthion news coming at SHU-TAISAI 2025 — Japan’s annual festival for shmups!
🗓 June 14, 17:00 JST (08:00 UTC) – SuperDeluxe Games segment
👉 I’ll be playtesting Earthion live!
🗓 June 15, 14:00 JST (05:00 UTC) – exA-Arcadia segment
📺 Streamed via Game Center Mikado’s YouTube
🔗 shootersfes.com

We’re using SGDK, so it’s all C for Earthion.

It’s been a while since we last shared any updates on Earthion, but some long-awaited news is coming in about 10 days. Keep an eye out! #Earthion #アーシオン

Hmm, I don’t really remember that photo, but I was probably at the mastering room at Alfa Studio.

Remember those hand-drawn shmup posters on arcade walls in the late ’80s?
We asked legendary illustrator Mitsuhiro Arita, known for the Pokémon TCG, to bring that spirit into Earthion’s key visual.
It’s our tribute to the golden age of arcade shooters.

Gradius has always been in my DNA.

Sound-wise? Absolutely not!🤨

You’re hearing the exact same track from the trailer, played back on my real Sega Megadrive.
No emulation. No filters. No audio processing. Just pure YM2612+SN76496.🎶

Thanks! I figured people like you were here on Bluesky, so I recently started posting.

Earthion on Steam Featuring eight action-packed stages full of stunning visuals, frenetic gameplay, and amazing special effects—not to mention an incredible soundtrack composed by the legendary Yuzo Koshiro—Earthion wi...

The Steam page for Earthion is up!
A brand-new side-scrolling shooter built on real 16bit tech, featuring explosive pixel art and a soundtrack powered by the YM2612.
Wishlist now and witness a new generation of shooters.
store.steampowered.com/app/3597580/...