via http://www.emucr.com/

FourDO SVN r217 is released. FourDO is an open-source emulator for the 3DO Game Console.

FourDO SVN Changelog:
r216
Ready for 1.1.1.0
r217
Committing some changes from 1.1.1.1 and to game database

http://sourceforge.net/projects/fourdo/