QUSW3 on São Paulo Stock Exchange

Quality Software

American software company

Quality Software is a defunct American software developer and publisher which created games, business software, and development tools for the Exidy Sorcerer, Apple II, and Atari 8-bit computers in the late 1970s and early 1980s. Asteroids in Space, written by programmer Bruce Wallace, was voted one of the most popular games of 1978-80 by Softalk magazine.² Its shares trade on São Paulo Stock Exchange under the symbol QUSW3.¹ Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

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TickerQUSW3 on São Paulo Stock Exchange¹
Industryvideo game industry¹
HeadquartersReseda¹
Websitewww.quality.com.br

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Products and brands

1979

Starbase Hyperion by Don Ursem

1980

Asteroids in Space by Bruce Wallace, later renamed Meteoroids in Space

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Battleship Commander by Matthew Jew and Erik Kilk

Fastgammon by Bob Christiansen

Fracas by Stuart Smith

Head-On Collision by Lee Anders

Tank Trap by Don Ursem

Tari Trek by Fabio Ehrengruber

1981

Ali Baba and the Forty Thieves by Stuart Smith

Block Buster

Martian Invaders by James Albanese

QS Reversi by Lee Merrill

1982

Beneath Apple Manor Special Edition by Don Worth

Jeepers Creepers by James Albanese

Name That Song by Jerry White

1983

The Return of Heracles by Stuart Smith

From Wikipedia’s article on Quality Software, shared under CC BY-SA 4.0.³

Timeline

Sep 30, 2021Went public Listed on São Paulo Stock Exchange¹

Sources

The numbers on this page point here. Each one links to the record it came from.

1
WikidataQuality Software on Wikidata
2
WikipediaQuality Software on Wikipedia
3
WikipediaQuality Software on Wikipedia (revision used)

Overview

Products and brands

Timeline

Links

Sources