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Developer(s) drk//Raziel (skmp), xiro and hlide.
Latest version 1.2.1
Active No
Platform(s) PlayStation Portable
Emulates Dreamcast
Accuracy Medium
Website nulldce-psp
Programmed in C++, C
Source code GitHub
BIOS/Keys Required for DC

nullDC-PSP is experimental Dreamcast emulator for PlayStation Portable.


nullDC-PSP is a currently in an experimental stage. The emulator was originally developed in 2008. The source code was lost for many years; it was published on GitHub in the mid-2010s, nullDCe. PSP port might still compile. A fork from the nullDC-mainline somewhere in late 2008, with hackports to PSP. This is here for archival reasons. Project eventually morphed to reicast, It was compiled and restored by xiro and hlide in 2021.


  • GDI format support
  • Sound isn't supported
  • DC CPU Downclock
  • Underclock AICA
  • AICA Hack
  • New XMB UI
  • Running with Interpreter


  • Most Dreamcast games boot (2D games run with good speed but 3D games slow).
  • nullDC-PSP is only compatible with 'slim' models (PSP-2000 and above). It will not boot on the original PSP-1000.


Pac.png Vf.png
Xx.png Sa.png


PSP 1.2.1


DC BIOS files are Required in the nullDC/data folder :

  • dc_boot.bin
  • dc_flash.bin

Game Files[edit]

GUI.png Only games in the .gdi format are supported for now. Place the files for each individual game within a separate folder, and move the folder to nullDC-PSP\discs. The list of available games will then appear when you boot the emulator.


Idle time can be adjusted with the L / R buttons.

To start the Dreamcast BIOS, press triangle as the emulator is booting.

External links[edit]