Amplitude Studios announces a fifth free add-on for Endless Space called The Search for Auriga is coming next month, adding more free content to their 4X strategy game. Word is: "'The Search for Auriga' will include new heroes, a special wonder, a unique planet, in addition to new features such as Rally Points as well as AI and balancing improvements. More details will be unveiled very soon." To celebrate the news, the game is on sale on Steam for 75% off.