PC Disgaea 5 Complete PC demo now available through Alienware Arena Sign up and claim your demo key. NIS America, in partnership with Alienware Arena, is offering a free demo for the PC version of Disgaea 5 Complete. To claim your demo key, sign up for or log into an Alienware Arena account and visit this link. Disgaea 5 Complete is due out for PC on May 7. Read more about the game here.