Native Windows x64 preview of Touhou 4: Lotus Land Story, built from the portable source on port/modern-64.

Extract the ZIP, add your separately supplied th04.hdi, FREECG98.BMP and ym2608_adpcm_rom.bin, and run Play.bat. Play-no-life-loss.bat enables seamless invincibility with its own save directory. Both launch the same executable with sound enabled.

The ZIP contains the program, launchers, build information, checksums and licenses. Original game data/images/executables, font bitmaps, sound ROMs and user saves are not included. Keep your existing save folders when updating.

Setup, controls, Windows/Linux builds, audio profiles and save locations

Changes in this preview:

• Native title/menu, Music Room, stage, ending and score/save flow.
• Faster tile/sprite/glyph rendering, smoother Windows deadline waiting and corrected inherited Extra boss slowdown.
• Repeated FM attacks preserved; corrected musical-part balance and bandlimited 48 kHz audio conversion.
• WinMM coalesces small PCM fragments to avoid premature buffer exhaustion.
• Ordinary and seamless invincibility BAT launchers share one final executable and separate saves.
• Standalone CMake build instructions and an allowlisted release packager.

Validation includes a fresh Windows x64 game build from a public-source snapshot without private caches/data, focused PCM/backend contracts, actual muted Windows input/Music Room controls, silent real-WinMM transport, 23-song starts/profile and third-stage two-loop controls. Complete protected Normal/earned Extra logical routes validate endings, registration and saved-state checks. Protected clears establish flow rather than ordinary difficulty/balance.

This is a preview, with no claim of full original DOS timing/pixel identity, physical PC-98 analogue audio identity or exhaustive controller/difficulty coverage. Linux is available as a source build. Repository-authored work is MIT licensed; the included ymfm notice is BSD-3-Clause. Original Touhou content is supplied separately.