This system dictates the late game. Unlike Civilization V , where culture and diplomacy decide much of the endgame, Beyond Earth allows for military and ideological domination. Your affinity determines your victory conditions, your unit upgrades, and how the AI leaders perceive you.
Most modern downloads, including the ElAmigos release, include the Rising Tide expansion. This add-on was crucial in Sid Meiers Civilization Beyond Earth MULTi10-ElAmigos