Valve are looking for community prop makers to furnish the shooter’s October update. From the Team Fortress 2 blog:
Scariness doesn’t just happen, people. It’s serious business. That’s why we’re giving you until October 1st to fill the Steam Workshop with horrifying Halloween-themed cosmetic items. If you’re not an item-making sort of person, you can still keep busy. Why not visit the workshop and rate other people’s Halloween-themed items? Rating terrifying items will also help you build up your resistance to being scared before we unleash this year’s Scream Fortress update.
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