Hell Invaders features actual card battles--rather than two cards "fighting" on a table, the creatures within the cards actually have 3D representations that fight it out--as well as cards that sport upgrades and swappable skills, so even cards for the same creature can be completely different.

Players can battle it out in a single player campaign or take up cards and fight in PVP arenas. For more peacefully inclined souls, trading, card management and other social features provide ways to enjoy eternal damnation.