First binary release of Undertow, a high-level emulator for the ZAPiT Game Wave.

Windows 64-bit: unzip anywhere and drag a disc image (.iso) or an extracted disc folder onto undertow.exe. No firmware or BIOS needed; bring your own disc images. The executable is not code-signed, so Windows SmartScreen may warn ("More info" -> "Run anyway").

Tested titles: Sudoku, Gemz, Lock 5, Letter Zap!, 4 Degrees: Bible Edition, VeggieTales: Veg-Out! Family Tournament, Quiz Konnect, Zap 21, Rewind, Click!. See the README for controls (keyboard = remote 1, game controllers = remotes 2-6) and options.

The zip bundles a minimal LGPL build of FFmpeg 8.1.3 plus SDL2, zlib and winpthreads; licenses are in licenses/ and THIRD_PARTY_NOTICES.md.

Built on the research of the GameWaveFans project.