Challenge Chest OverviewCategoryInteractiveWeightDurabilityFrictionBuoyancyFlammableNo Challenge Chest is an interactive part in Scrap Mechanic. Contents 1 Overview 2 Trivia 3 History 3.1 Beta Overview A container that holds building items in Challenge Mode. Only available to be placed in Challenge Builder. The Challenge Chest has 40 slots. Trivia The Challenge Chest is based on an earlier iteration of the Large Chest. This is why its appearance is more similar to the Chest. The Challenge Chest has the Wonk Enterprises logo on the top of it. History Beta 0.4.8 Added opening animation. 0.3.5 Added Challenge Chest.