DeathSpank will feature local co-op gameplay, so friends can team up to play both DeathSpank and his trusty sidekick, Sparkles the Wizard.Player 2 is more of a "helper" than a full featured co-op partner.
More Info @ PCGamingWiki
For uncounted years the wanderer DeathSpank has been a Dispenser of Justice, a Vanquisher of Evil, and a Hero to the Downtrodden. Throughout his adventures DeathSpank has searched for a powerful artifact called ... The Artifact. Forged by unknown hands for unknown purposes some unknown time in the past, The Artifact is now within DeathSpank’s reach, but what is The Artifact and what evil tyrant seeks to steal it?