You can open chests with tokens. They give you coins, vouchers, kits and kit parts. These can be traded on the Player Market and used to make kits.

The chest menu after opening a chest
You earn three rewards per chest, indicated by the green column

Drop rates

Item Chance per roll Chance per chest Usage
Coins (100-4000) 54% 162% Trade-up, craft or trade on the Player Market
Blueprint 25% 75% Three blueprints can be crafted into a kit
Voucher 20% 60% A voucher can be redeemed to use the kit three games. Three vouchers can be crafted into a blueprint.
Kit 1% 3% Used in game