Wyrmsun is an open-source real-time strategy game which features elements of mythology, history and fiction. 

In the Wyrmsun universe a myriad of inhabited planets exist. Humans dwell on Earth, while dwarves inhabit Nidavellir and elves nourish the world of Alfheim. These peoples struggle to carve a place for themselves with their tools of stone, bronze and iron. And perhaps one day they will meet one another, beyond the stars...