Game · FPS & shooters

Shuusou Gyoku (Engine)

ReC98 source port of the first Seihou Project game.

Completely free
Linux
Open source

At a glance

Shuusou Gyoku (Engine) is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
Commercial use allowed

About

Requires the data files of an existing game copy. If they are missing, the game indicates their expected location at startup. MIDI playback is not yet implemented for Linux. To get background music, download and set up a BGM pack through the Config → Sound / Music → BGMPack option. This release comes bundled with IPAMonaGothic, a free and metric-compatible alternative for the MS Gothic font used in the original Windows version. For pixel-perfect text rendering, put msgothic.ttc into one of your system's standard font directories, as listed by fc-cache -v.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 9 November 2026
Description from Flathub — AppStream (Flathub)

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