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Company name Description Games

Play Byte

PlayByte was a label of Blue Byte Software, used for publishing a line of action and puzzle games in the early 1990s.
Atomino

PLBM Games

PLBM are based in California. They have produced many downloadable games for PCs, mainly shareware action games, however their primary focus as of 2006 is the PalmOS format.
Splat!, Meteor Rescue, Ack-Ack Attack!, Spaced-Out Invaders, Speed-Kar, Nitro, Heli-Jeep, Scud Attack

Pod Bay Enterprises

Sea School

Polarware

Founded by Mark Pelczarski, Polarware started out as Penguin Software, the company existed from 1978 until 1987 and eventually became part of another publishing company (probably Merit Studios, Inc.). The company was named "Penguin" from 1981 until about 1986 when legal issues arose with the large book publisher, Penguin Books. Thus the name was changed to Polarware. The Apple II computer was the first personal computer that had color graphics. Their first programs were for drawing, manipulating, and animating graphics on the Apple II, and they were quite popular. The company pioneered much of the field of computer graphics. For a while, a good majority of educational software and games released for the Apple II opened with the "graphics by Penguin Software" acknowledgement. Their software even resides in the archives of the Smithsonian's Museum of American History.
All Dogs Go To Heaven, Talisman: Challenging the Sands of Time, The Crimson Crown

PolyEx Software

Vigilance on Talos V

Polygames

The company was founded as Sterling Silver Software in 1988 by Dennis Koble and Lee Actor. The company was renamed Polygames in 1992.
Tour Golf, Don't Go Alone

Positive

Dimensión Omega

Positronic Software, Inc.

Positronic Bridge

Postum Soft

Hammer-Head

POW Productions

PowBall

Prentice Associates, Inc.

Science Explorers - Plants, Science Explorers - Skeletons, Science Explorers - Shadows

Prestige Softwareentwicklung GmbH

Locomotion

Probe Entertainment Ltd.

British game company founded in 1984. In 1995 the company was acquired by Acclaim Entertainment and in 2001 renamed to Acclaim Studios London.
Alien Trilogy, Bram Stoker's Dracula, Supremacy, Batman Forever, Back to the Future Part III

Procryon

Battle of the Eras

Proline Software GmbH

Nyet 3: The Revenge of the Mutant Stones

PSI Software Designers

Floor 13

Psion Software Ltd.

Psion Chess

PsychoHazard Software

StixWorld

PsychoSoft Entertainment

Azalta

Psycon Software

Cybersphere