OTS Software OTS Software: Developer of freeware, shareware, and inexpensive retail games, including card games, puzzles, first-person shooters. (O) http://www.otssoftware.com/
Outsource Media Outsource Media: Offers computer games voice production in the UK, US. Services include casting, recording, post production, game developer services, and support. (O) http://www.omuk.com/
Oquirrh Productions Oquirrh Productions: Developers of hunting, shooting and conservation games. (O) http://www.oquirrh.com/
Ongame e-solutions Ongame e-solutions: Developer of online poker games, using Java technology. (O) http://www.ongame.com/
On-Line Entertainment On-Line Entertainment: Publishers of Automayhem, Art of Kings, and Iron Wolves. (O) http://www.on-line.co.uk/
OmletteSoft, Home Of Omlette OmletteSoft, Home Of Omlette: Lord Omlette's personal homepage. (O) http://www.omlettesoft.com/
One Man Band One Man Band: Gameboy Advance and Game Cube developer. Features portfolio and client list. (O) http://www.onemanband.com/
Ominous Development Ominous Development: Developer of Onyx Star. (O) http://ominousdev.tripod.com