Warhammer 40K has been around for years, but its recent spike in popularity has been great for introducing new players (and entirely new generations) to real Space Marines. And the licensing continues with Herocraft and Games Workshop's upcoming free-to-play iOS title Warhammer 40,000: Space Wolf.
Space Wolf will be a combination of turn-based tactical combat and card collecting. Moves, weapons, and pretty much everything else is handled via cards while the action plays out in 3D. More powerful cards can be acquired through victory (glorious victory!), upgraded through the Iron Priest's Forge, and presumably purchased with various forms of currency.
Follow the path of the Grey Hunter, Wolf Scout, Blood Claw, or Wolf Guard as you face-off against Word Bearers and Necrons in what is being described as "An epic campaign with branching storylines, spanning hostile environments on a far distant planet." Personally, I can't freaking wait.
Space Wolf will be coming to iOS (and Android and PC) sometime in 2014.