What is new in Chapter 3
- Laughing Jack's party, thrown for your character, with the whole house in attendance.
- The decorating job — hallway, living room and basement, for Slenderman's visiting brothers. See the decorating guide.
- Spin the bottle in the basement, proposed by Jeff.
- The Slenderman summoning ritual in your own room, and the room he builds for you afterwards.
- Explicit affection and jealousy rules, stated in dialogue for the first time.
- Splendorman and Slenderman's other brothers as visiting characters.