Achievements are unlockables rewarded to the player for performing certain tasks in-game.
List of Achievements
|Icon||Achievement Name||Description||More Information|
|Tattletail, That's Me!||Meet a new friend.||Complete the night of December 20, 1998.|
|Uh Oh!||Get into some trouble.||Complete the night of December 21, 1998.|
|Mama's Coming!||Meet mama [sic] .||Complete the night of December 22, 1998.|
|Let's Play A Game!||Have a good time with friends||Play the VHS on the night of December 23, 1998.|
|Mama Scary!||See where it all began||Complete the night of December 23, 1998.|
|We're Having A Party For Mama!||Gather supplies for a party.||Set up the ritual to banish Mama Tattletail.|
|No More Mama!||Seal Mama back inside her VHS tape||Complete the ritual on the night of December 24, 1998.|
|Happy Birthday!||Open your final present||Open the Christmas present on December 25, 1998.|
|Presents For You||Collect every gift egg||Collect all of the Gift Eggs.|
|Exclusive Offer!||Receive a special phone|
|Answer the phone after the ritual on December 24, 1998.|
|What Did You Expect?||Worlds collide.||Knock on Mom's door when being hunted by Mama.|
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