2K and Firaxis Games have announced the upcoming expansion pack for Sid Meier’s Civilization: Beyond Earth is currently in development for PC and is scheduled for a fall 2015 release.

Rising Tide is said to enhance the Beyond Earth experience through the addition of a variety of new gameplay features, including the option to build floating settlements and gain access to hidden resources found under the seas of the alien planet, additional diplomatic options, and the inclusion of four new factions. Players will also be able to invest in multiple Affinities to unlock hybrid Affinity units and upgrades, can now collect and combine alien relics via the new Artifact System, and will be allowed to explore one of two new biomes.

“Rising Tide builds upon the lore of Beyond Earth, breaking away the historical boundaries of the original franchise and furthering mankind’s search for a new home in outer space,” said Sid Meier, director of creative development at Firaxis Games. “Whether colonizing the planet’s oceans, acquiring new Affinities or meeting exotic new leaders, aliens and units for the first time, Rising Tide offers more ways for players to write their own stories on a new world.”

Sid Meier’s Civilization: Beyond Earth - Rising Tide will be available in fall 2015 for PC for $29.99.