Dungeon Siege III (Nov 16, 2010 prototype)

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Title Screen
Dungeon Siege III (Nov 16, 2010 prototype)
Build date Nov 16, 2010
Build name 669
Dump status Released, redump needed
Dumped by The Swarming Dark
Released by CVLT OF OSIRIS
File release date July 23, 2019
Origin Dev Kit Hard Drive
Dump method MultiMan
Game Dungeon Siege III
System PlayStation 3
Genre Action role-playing
Release date AU Jun 16, 2011
EU Jun 17, 2011
US Jun 21, 2011
JP Jul 28, 2011

An early prototype/prerelease build of Dungeon Siege III for the PlayStation 3 from 2010-11-16.


  • Has extensive debugging features, such as numerous debug menus and a debug console.
  • Includes 24 test/demo levels, 25 normal levels, over 311 test/demo/temp "supercells", 413 normal "supercells", 2159 test/demo/temp "cells", and 3344 normal "cells".
  • The CVLT OF OSIRIS release includes detailed documentation (409K of text) on most of the debugging features, including reference material for the debug console.
  • The CVLT OF OSIRIS release also includes both the original loose files and a rebuilt .pkg file for easy installation.
  • Does not run under Rebug, only DEX OFW.



  • Thanks to The Swarming Dark for preserving and sharing this extremely rare artifact of gaming history!
  • A special shout out also to March_42, who did additional research and helped ensure that this unexpected treasure would be preserved and shared.