Magicka +

Magicka is an action-adventure video game based on Norse mythology and developed by independent developer Arrowhead Game Studios. It was released via Steam for Microsoft Windows on January 25, 2011. A free demo was also made available for download. The game was developed by eight students at Luleå University of Technology in Skellefteå, Sweden and sold over 200,000 copies in its first 17 days on sale.