http://www.pcgamer.com/rocket-leagues-halloween-event-kicks-off-tomorrow-adding-a-new-free-way-to-open-loot-crates/

Rocket League's position on loot boxes just got a whole lot more complex. Up until now, loot crates containing cosmetic items dropped occasionally after matches, and to open them you had to buy a key with real money (or trade for one). But now that's changing, at least during special events.

The game's Halloween-themed event, Haunted Hallows, kicks off tomorrow (Monday at 5pm PDT), adding new spooky items and pumpkin-inspired loot crates. But you won't have to pay to open those crates—you can instead open them with Decryptors, a new item that you can get for free.