YOU SAID:

Evan is playing a video game known as Portal off of a service called Steam.

INTO JAPANESE

エヴァンは、蒸気と呼ばれるサービスのポータルと呼ばれるビデオ ゲームをプレイです。

BACK INTO ENGLISH

Evan is playing a video game called portal service called steam.

INTO JAPANESE

エヴァンは、蒸気と呼ばれるポータル サービスと呼ばれるビデオ ゲームをプレイです。

BACK INTO ENGLISH

Evan is playing a video game called portal service called steam.