FTMO does not currently offer a Free Trial for FTMO Futures.
You start by purchasing an Evaluation, in the form of a subscription, for the product of your choice: Growth or Pro. If an account fails due to a hard violation of the Trading Objectives, you can continue on your next renewal or purchase an Account Reset to start again.
More information about fees and Account Resets is available on the Trading Objectives and Rules page, in the Fees section.