World War II Online

WWII Online
Original cover art
DeveloperCornered Rat Software
PublisherStrategy First
DirectorMatt Callahan
ProducersRodney Hodge
Neil Huntley
Dana Baldwin
Steve Daniels
Geof Evans
DesignersMark Pribe
John MacQueen
Jonathon Hoof
Chris Sherland
ProgrammersCaleb Luehrs
Ian Frisbie
Gwynne Raskind
Mathew Hogan
Mike Cox
Mike Carter
ArtistsRoger Long
Kevin Rivas
Bruce Patnaude
James Chilton
Rafael Harris
Jeremy Lindstrom
Hector Gonzalez
EngineUnity 3D (proprietary)
PlatformsWindows, Mac OS X
ReleaseWindows
June 6, 2001
Mac OS X
November 13, 2002
GenreMassively multiplayer online first-person shooter
ModeMultiplayer

World War II Online: Blitzkrieg is a World War II massively multiplayer online first-person shooter (MMOFPS) developed by Playnet, Inc.'s internal game studio, "Cornered Rat Software", and it was originally released on June 6, 2001 for Microsoft Windows, with a Mac OS version being released in 2002. In 2005, WWII Online was re-released under the new name of WWII Online: Battleground Europe.

In the summer of 2017, WWII Online was released on Steam Early Access where it once again returned its name back to the original "WWII Online".

As of June 2021 the developers were working to port WWII Online from its proprietary engine to the Unreal Engine 5 in an effort to modernize graphics and workflows.