Scream Fortress 2017
Scream Fortress IX (or Scream Fortress 2017) was the Halloween event launched with the October 26, 2017 Patch. It introduced Halloween Contracts that were free for all players and were accessed via the ConTracker. In addition to this, all Halloween maps from the previous Scream Fortress events were activated (except for the Mann vs. Machine map, Ghost Town).
The event was scheduled to run from October 26, 2017, to November 8, 2017.
The Halloween Contracts were removed from the ConTracker before 12:00 UTC of November 9. Halloween cosmetics and the Soul Gargoyle remained active until 12:00 UTC of November 10.
This Scream Fortress event offered 17 Halloween Contracts. They were free Contracts and did not require a Jungle Inferno Campaign Pass. These Halloween Contracts are different from the Merasmissions used in the previous Scream Fortress 2016 and Scream Fortress 2015. Not only are they different in their objectives, but they are also different in that they were accessed through the ConTracker (in a folder labeled "Halloween") in the same manner as the other Contracts activated in the Jungle Inferno Campaign. However, when completed, these Halloween Contracts were counted as Merasmissions by the Soul Gargoyle.
This set encouraged and rewarded exploration of all Halloween maps, with exception on Ghost Town, confrontation of all boss challenges, and exercise of all current Halloween map features, including Halloween pumpkins, pumpkin bombs, magic spells, bumper cars, and Underworlds.
Three of these Contracts were dedicated to defeating bosses, seven to the released community Halloween maps of previous years, and six to the Valve-made Halloween maps. Additionally, there is a "Start" contract, which could be completed on any map within Casual Mode.
Jungle Inferno logo during the Halloween Event.