The Seven Deadly Sins X-TASY: The Anime Action RPG is a free-to-play, offline, action RPG that allows you to fight against the seven deadly sins. The game is based on the anime series The Seven Deadly Sins, which was created by the famous Japanese manga artist, Kenji Horiuchi. It was first released in Japan in 1996, and has been translated into English, Spanish, French, German, Italian, and Portuguese.

The story takes place in the kingdom of God, where mankind has fallen into sin due to the presence of evil demons. These demons are the cause of the sudden appearance of monsters called "archangels." These monsters are the enemies of the sinful demons and will be the means of mankind's salvation.

In order to save mankind, the king of God sends his three best warriors, the "Saints," to fight against the evil demons.