The Plastic Depot is a building released on August 19, 2015, during the Monorail 2015 Event, where it was limited time. It's a Crafting Station where the Player, spending some previously rewarded, will collect Plastic to progress into the event. It's unlocked for free upon completion of Rail Against the Machine Pt. 2. A maximum of 100 Plastic can be held at the depot. It was permanently added to the game with the release of the Dilapidated Rail Yard Expansion.