You may have recently purchased a bundle pack of Fate games from a local store. There has been some concern that the disc does not contain all 3 games.
The retail CD has all of the game content from Fate, Fate: Undiscovered Realms, and Fate: The Traitor Soul readily available to you without requiring you to select only one of the games to play.
After installing the disc, you will begin the game inside the Temple of Fate. From there you can choose to play the dungeons of Typhon or Druantia (from Fate: Undiscovered Realms), use the portal to Grove to explore the dungeon and town from the original Fate, or play the new content in Fate: The Traitor Soul.
We hope you find this easier than installing or selecting one of three games.