Rocket League’s Halloween event, Haunted Hallows, is about to get underway! Starting Monday October 16, players will be able to collect Candy Corn to buy crates and Halloween themed items. The event will last until November 6.
Here’s more about the event from the Rocket League blog, including how the limited time currency will work:

Our Event system introduces a new limited-time currency, with the first being Candy Corn! All you need to do to earn it is to play (and complete) Online Matches. In order to use Candy Corn, simply click the ‘Special Event’ button on the main menu screen. From there, you can redeem whatever you’ve earned to claim Halloween Items, Decryptors, and Locked “Haunted Hallows” Crates. Candy Corn can be spent throughout the Event, and will expire one week after Haunted Hallows is over, but don’t worry — Items purchased with Candy Corn DO NOT expire at the end of the event, and will remain in your inventory forever!
Our new ?Haunted Hallows? Event Crates are only available during the Haunted Hallows event, and there are three ways to get them. As always, you can get a new Crate as a drop after some Online Matches, and you can also buy the Crate using Candy Corn. In both cases, you can open the Crate with a Key or a Decryptor. We?re also letting you buy Event Crates directly, similar to how you buy Keys, and any purchased ?Haunted Hallows? Crate will not require a Key or Decryptor to unlock. Purc...