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ProjectPSX vs ZoniStation One

Both stand on playstation emulators. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

ProjectPSX

Free plan LinuxWindows

Pick ProjectPSX if you want to explore an open-source, work-in-progress PlayStation emulator or learn from its implementation. Its headless core and implemented hardware components make it a fit for experimentation. Look elsewhere if you need a documented compatibility list or finished emulation; it also requires a valid BIOS.

Visit ProjectPSX

ZoniStation One

Free plan Linux

ZoniStation One offers a technically detailed Linux emulator with rendering choices, debugging features, and save states. Its limited PAL testing, required user-supplied materials, and reported audio issues make its current scope clear.

Visit ZoniStation One

The facts

ProjectPSXZoniStation One
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, WindowsLinux
Lowest paid planNot publishedNot published
Plans publishedNoneNone
MakerNot publishedNot published
Websitegithub.comgithub.com
On playstation emulators#15 of 25#19 of 25

ProjectPSX: what it does well

  • Implements CPU, GPU, CD-ROM, DMA, timers, MDEC, memory cards, and SPU components.
  • Loads BIN and CUE disc images.
  • The core is a headless library with no external dependencies.
  • Includes WinForms and OpenTK projects; OpenTK runs on Linux.
  • Uses the MIT License.

What to know first

  • A valid PlayStation BIOS is required.
  • Controller input is currently hardcoded to the keyboard.
  • Some games may have random problems, and there is no compatibility list.
  • DMA resumable transfers and proper CD-ROM timings are unimplemented.

ZoniStation One: what it does well

  • Free and GPL-3.0-or-later licensed
  • Switchable OpenGL and Vulkan renderers
  • Built-in disassembler and Lua console
  • DualShock 4 and keyboard input
  • Whole-machine save states

What to know first

  • Requires user-supplied BIOS and discs
  • PAL-focused; NTSC testing stops at BIOS
  • Only four titles reported in testing
  • Some game audio issues remain

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