Race for the Galaxy: Xeno Invasion

From Rio Grande Games:

Race for the Galaxy: Xeno Invasion is the fifth expansion for the classic game of space conquests, Race for the Galaxy.

Xeno Invasion comprises the third story arc in the game series.  It depicts the galaxy as being under attack by waves of violently xenophobic aliens, dubbed the Xenos.  This expansion adds Xeno military worlds (worlds conquered and occupied by them), specific military vs. Xenos, and a new keyword: ANTI-XENO.

The expansion is not compatible with the other expansion story arcs.  It must be played in combination with base game.

Xeno Invasion is aimed at intermediate Race for the Galaxy players. It adds 51 game cards to the base set.