From the announcement:
Your journey across the stars begins now. Having mastered every corner of your home world, your people now look to the skies and the many unclaimed planets that wait in the far reaches of the galaxy. The environments of many of these new worlds will inevitably be incompatible with your species’ unique physiology. But this is no hindrance to you. Rather than slowly adapting to new climes, you possess the power to bend the very fabric of planets to your will, creating new frontiers for you to explore. Boldly build your galactic civilization. Gaia Project is available now!