Keyless Crates and the Importance of Keys - Team Fortress 2 Economy - backpack.tf forums
Matthew Morandi 🍥 on Twitter: "Looks like Loot Boxes were a hit in #OverWatch so now the sexiness is in #TF2... (keyless class crates) https://t.co/lx0gUXIH6W" / Twitter
Pallet of Crates - Official TF2 Wiki | Official Team Fortress Wiki
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Talk:Mann Co. Supply Crate - Official TF2 Wiki | Official Team Fortress Wiki