By the late 1970s, Nintendo began moving away from toys and playing cards and into the rapidly-growing video game market. Their decision was based on the release of the hugely-successful arcade game "Space Invaders" by Taito and the 1973 oil crisis making toys expensive to produce. Nintendo's first foray into the industry was "Computer Othello" in 1975. They followed it with games such as "Sheriff", "Space Fever", and "EVR-Race". Most of these were unsuccessful but made Nintendo view video games as the next market to jump into. The home console market also saw a rise in popularity, particularly in North America with the release of Atari's "Pong" system in 1975. This caused the market to become flooded with similar "video tennis" games as companies scrambled to cash in on its success. Nintendo was no exception, and decided to make their own dedicated "Pong" system as a way to bring its popularity over to Japan.