Magicka
Magicka is an isometric cooperative action adventure game by Arrowhead Game Studios. When it initially came out in early 2011 it was plagued with numerous bugs, but these have since been patched by the developers. The game has since seen many bits of DLC, from completed themed packs, to maps and new weapons.
Version Differences
Digital Rights Management (DRM)
Magicka is only available for Steam, and therefore uses Steamworks as DRM.