All the information mentioned is subject to change as the game elements are constantly being balanced and improved.
In the current phase of the game, players are able to receive crafting material(s) after spending a minimum of 5 units of Energy in their run. Crafting materials are “Potential Rewards” and their drop quantities are random. After the mission, players will be able to find the dropped materials in their Inventory Page.
Drop rates are different for each of the crafting materials. For every 5 points of energy used a Random Number Generator rolls to determine how many of the potential rewards you will receive.
You get a chance to collect different crafting material in different missions.