Per Aspera Green Mars

Per Aspera Green Mars is a free DLC that adds tools for transforming Mars into a garden planet. You can alter the atmosphere so the planet’s mineral-rich soil becomes fertile, and design and landscape the surface, including placing trees on Elysium Mons.

Water and biomes

The updated water simulation shows rivers flowing into valleys and craters, carrying water into deeper parts of the desert where it can support lush forests. New water pipes let you direct water where it is needed, and a lens view shows where water is generated and where it is required.

Mars now has 11 possible biomes, each with conditions that affect the growth of its flora and fauna. Placing biodomes and farms to direct plant growth is part of the terraformation challenge.

Food and wildlife

Two new food-processing buildings use running water to grow more nutritious food, helping keep the scientists on Mars happier and working harder. The DLC also adds capybaras to Mars.