The Haunted Forest Party is a haunted-themed party that is available to everyone. It was first introduced on October 11, 2012, and it returns during the Night of the Phantoms celebration every year.
The Haunted Forest Party takes place in a small, dark, spooky forest that is surrounded by many dead trees with glowing faces, patches of fog, and many other spooky themed items. On the right side of the area, there is a record player, a carriage, and a trunk full of items. Off in the distance, a large full moon can be seen just over the horizon. In the background, there is also a large phantom factory that partially obscures the moon.
Members and non-members can visit the shops on the right side of the party to buy spooky-themed clothing, music, and furniture. Around the bottom left of the party, Jammers can walk around a spooky tree surrounded by fog that will slowly turn their animal transparent, presumably to resemble a ghost. At the top of the party, the top of the moon can be clicked to unleash a swarm of randomly decorated bats that fly towards the player before vanishing. Also at the top of the party, a small moon can be picked up and carried around by clicking on the bottom portion of the moon in the sky. Similarly, a ghost can be carried around the party by clicking on the spooky tree that is just above the shops on the right side of the party.
- On its first release in 2012, members could buy Pet Bats from this party, but they were removed from the party starting in 2013 and moved to the Spooky Party.
- The shop containing the den items in the party was removed on the party's fifth release in 2016.