The 12 greatest superhero video games ever

On Thursday, games publisher Square Enix announced it had signed a multi-game partnership with Marvel to produce a series of Avengers titles. Two studios, Crystal Dynamics (Tomb Raider) and Eidos Montreal (Deus Ex) will be working on the project, so we can perhaps expect big, open world action adventures with a smattering of role-playing depth. So what legacy will this tie-in have to contend with? Is there a glorious history of super hero games? Here are our top twelve, please add your own in the comments section.