Just clarifying postage costs. Whichever reward you choose it's the same for either. All are tracked and signed for. Posted from the UK 1st class.
USA £16 (See an example below from the Royal Mail)
Rest of the world £20
One or two games fit within these specifications, hence we can offer two games for the same postage.
Maximum size: The combined length + width + depth must be no more than 90cm with no single side longer than 60cm
Maximum weight: 2kg
Source: Royal Mail, UK Website as of 1st May 2019
A screenshot for USA (as an example) can be seen here: https://www.dropbox.com/s/lmcjqo4g77zoeuo/usa.jpg?dl=0