KAMUI

Indie· Action· Shoot 'Em Up· Great Soundtrack

Released Dec 2014

Centuries have passed since the events of RefleX and mankind has once again attained civilization. Now, ancient technology born of a twisted mind sets in motion a chain of events designed to bring divine retribution down upon mankind.

90% positive · 218 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 5 Oct 2026 $3.99 $7.99 −50%

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Evaluation

KAMUI is a 2D shoot 'em up that released on Steam on December 11, 2014 as part of the ALLTYNEX Trilogy. It launched as a complete, self-contained game with 6 stages, a full difficulty system, and a simultaneous soundtrack DLC — all released on launch day. There has never been any post-launch content added to the game itself. The original publisher, Nyu Media, announced its closure on June 15, 2022, but explicitly stated that all games would remain available for sale on Steam. Shortly after, on July 7, 2022, Henteko Doujin (the developer/new publisher) took over sales of the ALLTYNEX Trilogy and pushed a maintenance update adding Japanese language support, updated publisher branding, FLAC soundtrack files, and display fixes for Windows 10+. The game remains purchasable today under Henteko Doujin. The two recent "major content" news posts (Revolgear Zero in February 2026 and Kamikaze Empire in June 2026) are announcements for entirely separate games published by Henteko Doujin — they have no bearing on KAMUI's content status. KAMUI shipped as a finished arcade-style product with no announced post-launch content, no unreleased DLC, and no roadmap. It is a complete game that has been fully available since its December 11, 2014 launch date.

Evidence

The only DLC is an original soundtrack released on launch day. No unreleased DLC exists.

dlc listing · Dec 11, 2014 source content shipped

high

Nyu Media announced studio closure, but confirmed all games including KAMUI would remain for sale on Steam.

news post · Jun 15, 2022 source ambiguous

medium

Content

1 of 1 released · no outstanding content

Released

KAMUI Original Soundtrack

Dec 2014

Media

Details

Developer

SITER SKAIN

Publisher

Henteko Doujin

Achievements

Platform

Windows

Controller

partial support

Steam Deck

Not rated

Players

Single-player

Action Indie Shoot 'Em Up Great Soundtrack Bullet Hell Shooter Arcade Sci-fi Pixel Graphics

About this game

The mysterious object that had shimmered in the blue sky for countless generations and was worshiped by men as a god was in fact a massive man-made structure. And now, the silent vigil that was thought would last forever has come to an end.

Centuries have passed since the events of RefleX and mankind has once again attained civilization. Now, ancient technology born of a twisted mind sets in motion a chain of events designed to bring divine retribution down upon mankind. The key to bring forth the annihilation is KAMUI, a fighter craft based on ‘Xaffiquel Theory” brain fusion technology. This twin-tined instrument of mankind's destruction carries a terrible secret that ironically will prove to be mankind’s only hope for salvation.

6 stages of meticulously designed levels and presentation!
The 'real deal'! 2D arcade shooting action over high & low altitude planes!
Score multiplier system based on an auto-targeting Lighting Attack!
Destroy enemy bullets using the powerful Lightning Katana!
Finely-tuned difficulties and rank system: pick from several difficulty settings based on precision enemy placement and algorithms or let the game adjust the difficulty according to your skills!
New to the English version: TATE (rotated) display mode!

Last evaluated Jun 17, 2026