Sierra Online

Sierra Online was a software publishing company founded by husband and wife Ken and Roberta Williams. Ken and Roberta Williams had developed a graphic adventure called Mystery House.

List of some games published by Sierra Online (AKA Sierra) Frogger

Sammy Lightfoot

Threshold

The Wizard and the Princess

Time Zone

Ulysses and the Golden Fleece

Jawbreaker

Jawbreaker II

Mousekattack

Hi-Res Football

Apple Cider Spider

Aquatron

Ultima II: The Revenge of the Enchantress

A Gelfling Adventure

Championship Boxing

Thrilogy