Shogo: Mobile Armor Division — Linux Demo (Flatpak)

Flatpak package of the native Linux demo of Shogo: Mobile Armor Division (mecha FPS by Monolith Productions, 1998; Linux port by Hyperion Entertainment).

Contents

• Original Linux i386 client (demo v2.1, repackaged by the LIFLG community, published on repo.openpandora.org by ptitSeb with redistribution allowed)
• Demo data (shogodem.rez) and modules (glx.ren, de_msg.dll, bundled GTK 1.2)
• sdl12-compat built for i386 (SDL 1.2 API on SDL2 → audio via PipeWire/PulseAudio)
• gamescope (Flathub extension) for fullscreen presentation
• GTK3 EULA acceptance dialog (shown on first launch, persisted afterwards)

Local build

flatpak install -y flathub \
  org.freedesktop.Platform//25.08 org.freedesktop.Sdk//25.08 \
  org.freedesktop.Sdk.Compat.i386//25.08 \
  org.freedesktop.Sdk.Extension.toolchain-i386//25.08 \
  org.freedesktop.Platform.Compat.i386//25.08 \
  org.freedesktop.Platform.VulkanLayer.gamescope//25.08

flatpak-builder --user --force-clean --repo=repo build \
  io.github.enne2.ShogoDemo.yml

flatpak install --user -y repo io.github.enne2.ShogoDemo
flatpak run io.github.enne2.ShogoDemo

Portable bundle (install on other machines)

flatpak build-bundle repo shogo-demo.flatpak io.github.enne2.ShogoDemo master

Automatic install on a new machine

Copy two files to a Linux machine with flatpak installed:

./install-shogo-demo.sh            # (same folder as the bundle)
# or, if the bundle lives elsewhere:
./install-shogo-demo.sh /path/to/shogo-demo.flatpak

The script does everything automatically:

1. adds Flathub if missing;
2. installs the Freedesktop 25.08 runtime and extensions:
   • org.freedesktop.Platform.Compat.i386 (32-bit libraries)
   • org.freedesktop.Platform.GL32.default (32-bit OpenGL libraries)
   • org.freedesktop.Platform.VulkanLayer.gamescope (gamescope, for fullscreen)
3. installs the game (bundle).

Note: flatpak install of the bundle also fetches missing runtimes/extensions from Flathub automatically; the script installs them explicitly to be safe (an internet connection and Flathub are still required).

Usage

• Keyboard: WASD/arrows, mouse to aim (see the game documentation)
• Save games: ~/.local/share/shogo-demo/Save/
• Config: ~/.hyperion/Shogo/
• EULA acceptance (persisted): ~/.config/shogo-demo/eula-accepted (delete it to show the EULA dialog again)

License / EULA — IMPORTANT

The demo is shareware/proprietary software by Monolith Productions (Linux port: Hyperion Entertainment). It was freely distributed at the time and the Open Pandora repo lists it as "Redistribute: Allowed", but no EULA text explicitly authorizing redistribution has been found (a requirement for Flathub to host third-party binary payloads).

Use the bundle for personal/private use. Publishing on Flathub requires one of:

1. The EULA text of the original demo installer (ShogoDemo.run, Hyperion) allowing copy/redistribution of the demo;
2. Written permission from the rights holders (Hyperion Entertainment / Interplay / current rights owner);
3. Alternatively: publish only a launcher without game data, with instructions on how to obtain the demo.

Credits

• Demo: Monolith Productions / Hyperion Entertainment
• Linux demo repackaging: Team LIFLG, ptitSeb (PND for Open Pandora)
• sdl12-compat: libsdl-org (SDL 1.2 API on SDL2)
• gamescope: ValveSoftware
• Flatpak/modern-Linux adaptation: enne2