Xeno Invasion is aimed at intermediate RFTG players, adding a full expansion set with 51 new cards, as well as a bonus Invasion Game.

With a theme of a galaxy under siege by a newly discovered Xenophobic Race, Xeno Invasion introduces several new game concepts: Xeno Worlds, Specialized Militia, and the Anti-Xeno "Keyword".

In the Invasion Game, the players must defend against successively more challenging waves of invading Xenos until the players' collective military power is able to fend Off the attackers. The challenge for the players is to manage their defenses and repairs, while strategically maintaining their individual military strength.

Race for the Galaxy: Xeno Invasion on Boardgamegeek.com