P0341

Game logic code has now been isolated into a separate DLL (ssg.v1.005.dll), which is now shared by both the modern and Windows 98 builds. A new command-line tool (ssg_cli.exe) demonstrates how this shared code can be used for rapid replay validation and desync detection by running them without graphical output. This allows a full 7-minute Extra Stage replay to be validated in less than 200 ms on modern systems.

This will be the final release before my retirement.

The remaining changes:

• Score popups from point items collected with negative values are now correctly rendered as such, with a preceding minus sign.
  If you spawn point items close to the center of the playfield and then lose a life, VIVIT is very likely to collect them while she's still moving up from below the playfield during the first 120 frames of the respawn animation. At these Y positions, the point item formula results in negative values. Since the original game's renderer simply skipped over minus signs, these negative scores wrongly appeared to be positive.
  See #98 for more details and video comparisons.

• In pbg's original release, trying to play a nonexistent Extra Stage replay would limit a subsequent Weapon Select screen for the 6-stage main game to the shot types that the Extra Stage has been unlocked with. This has now been fixed.
  See #94 for more details.

• 秋霜CFG.DAT is now written with correct checksums again, re-establishing backwards compatibility with the original release for all applicable configuration options. This feature accidentally broke in P0295.

Troubleshooting

Modern build (GIAN07.exe)

• ❓ The game runs, but rendering is broken
  ❗ Try hitting F7 to switch to the next rendering API in the list. You can also override any previous API choice by setting the environment variable SDL_RENDER_DRIVER to one of the following:
  • direct3d
  • direct3d11
  • direct3d12
  • opengl
  • opengles2
  • vulkan
  • gpu
  • software

Windows 98 build (GIAN07_win98.exe)

• ❓ The game runs slow, or doesn't render anything at all
  ❗ Delete any reference to GIAN07_win98.exe (the binary's file name) from the following registry keys:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
  • HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers

  Also, make sure that the 32-bit mode is activated in the Config → Graphic menu.

• ❓ D3DWindower stops windowing the game after it lost and regained focus, and might even crash the game soon after
  ❗ Open the game's ⚙️ Options dialog and check these boxes in the Foreground Control tab:

  

• ❓ D3DWindower has no effect on KernelEx-enhanced Windows 98
  ❗ Disable the KernelEx wrapper for KERNEL32.GetVersion:

  1. Open %WINDIR%\KernelEx\Core.ini
  2. Find the *.names section of the KernelEx configuration you're using for Shuusou Gyoku (i.e., [WIN2K8.names] for Windows 2008 SP1)
  3. Replace the KERNEL32.GetVersion= line with KERNEL32.GetVersion=std
  4. Save and reboot

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Additional credits

• English→Japanese localizations: Elfin
  • https://twitter.com/Wafflesespeon24
• Icon artwork: Mr. Tremolo Measure
  • https://twitter.com/TremoloMeasure/
  • https://bsky.app/profile/tremolomeasure.bsky.social

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Summary blog post: https://rec98.nmlgc.net/blog/2026-10-05
Full changelog compared to the previous release: P0326...P0341
Previous release: https://github.com/nmlgc/ssg/releases/tag/P0326