Why go back? Why struggle with manual installations and compatibility issues for a game from 2015?
In 2015, the footballing world looked very different. Boot up the game, and you are greeted by a prime-time Lionel Messi on the cover (the Argentine maestro was the face of the franchise then). You can play with a Leicester City team defending their miracle Premier League title. You can see a young Kylian Mbappé just starting to make waves, or a peak-era Andres Iniesta.
Because the official game can no longer connect to Electronic Arts servers, the current "deep" appeal of FIFA 16 lies in its offline and community patches: